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impala/common/function-registry/impala_functions.py
Skye Wanderman-Milne f062a22997 Convert string functions to UDF interface 
This also switches to using the re2 library for regular expression
functions instead of boost.

Change-Id: I4c3ae72ff2f7cbd5b1a2be719275f1b2e25f8ab2
Reviewed-on: http://gerrit.sjc.cloudera.com:8080/3412
Reviewed-by: Skye Wanderman-Milne <skye@cloudera.com>
Tested-by: Skye Wanderman-Milne <skye@cloudera.com>
2014-08-17 12:44:38 -07:00

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#!/usr/bin/env python
# Copyright 2012 Cloudera Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This is a list of all the functions that are not auto-generated.
# It contains all the meta data that describes the function.
templated_type_symbol_map = {
'bool' : 'b',
'int8_t' : 'a',
'int16_t' : 's',
'int32_t' : 'i',
'int64_t' : 'l',
'float' : 'f',
'double' : 'd',
'string' : 'NS_11StringValueE',
'timestamp' : 'NS_14TimestampValueE'
}
# Generates the BE symbol for the Compute Function class_name::fn_name<templated_type>.
# Does not handle varargs.
# TODO: this is a stopgap. ComputeFunctions are being removed and we can use the
# symbol lookup code in the BE.
def symbol(class_name, fn_name, templated_type = None):
sym = '_ZN6impala'
sym += str(len(class_name)) + class_name
sym += str(len(fn_name)) + fn_name
if templated_type == None:
sym += 'EPNS_4ExprEPNS_8TupleRowE'
else:
sym += 'I'
sym += templated_type_symbol_map[templated_type]
sym += 'EEPvPNS_4ExprEPNS_8TupleRowE'
return sym
# The format is:
# [sql aliases], <return_type>, [<args>], <backend symbol>,
# With an optional
# <prepare symbol>, <close symbol>
#
# 'sql aliases' are the function names that can be used from sql. There must be
# at least one per function.
#
# The symbol can be empty for functions that are not yet implemented.
functions = [
# Utility functions
[['current_database'], 'STRING', [], symbol('UtilityFunctions', 'CurrentDatabase')],
[['user'], 'STRING', [], symbol('UtilityFunctions', 'User')],
[['sleep'], 'BOOLEAN', ['INT'], symbol('UtilityFunctions', 'Sleep')],
[['pid'], 'INT', [], symbol('UtilityFunctions', 'Pid')],
[['version'], 'STRING', [], symbol('UtilityFunctions', 'Version')],
[['fnv_hash'], 'BIGINT', ['TINYINT'],
'_ZN6impala16UtilityFunctions7FnvHashILi1EEEPvPNS_4ExprEPNS_8TupleRowE'],
[['fnv_hash'], 'BIGINT', ['SMALLINT'],
'_ZN6impala16UtilityFunctions7FnvHashILi2EEEPvPNS_4ExprEPNS_8TupleRowE'],
[['fnv_hash'], 'BIGINT', ['INT'],
'_ZN6impala16UtilityFunctions7FnvHashILi4EEEPvPNS_4ExprEPNS_8TupleRowE'],
[['fnv_hash'], 'BIGINT', ['BIGINT'],
'_ZN6impala16UtilityFunctions7FnvHashILi8EEEPvPNS_4ExprEPNS_8TupleRowE'],
[['fnv_hash'], 'BIGINT', ['FLOAT'],
'_ZN6impala16UtilityFunctions7FnvHashILi4EEEPvPNS_4ExprEPNS_8TupleRowE'],
[['fnv_hash'], 'BIGINT', ['DOUBLE'],
'_ZN6impala16UtilityFunctions7FnvHashILi8EEEPvPNS_4ExprEPNS_8TupleRowE'],
[['fnv_hash'], 'BIGINT', ['TIMESTAMP'],
'_ZN6impala16UtilityFunctions7FnvHashILi12EEEPvPNS_4ExprEPNS_8TupleRowE'],
[['fnv_hash'], 'BIGINT', ['STRING'],
'_ZN6impala16UtilityFunctions13FnvHashStringEPNS_4ExprEPNS_8TupleRowE'],
[['fnv_hash'], 'BIGINT', ['DECIMAL'], symbol('UtilityFunctions', 'FnvHashDecimal')],
# Timestamp Functions
[['from_utc_timestamp'], 'TIMESTAMP', ['TIMESTAMP', 'STRING'],
symbol('TimestampFunctions', 'FromUtc')],
[['to_utc_timestamp'], 'TIMESTAMP', ['TIMESTAMP', 'STRING'],
symbol('TimestampFunctions', 'ToUtc')],
# Date and time add/sub functions.
# TODO: there must be a better way to deal with this symbols.
# Conditional Functions
[['if'], 'BOOLEAN', ['BOOLEAN', 'BOOLEAN', 'BOOLEAN'],
symbol('ConditionalFunctions', 'IfFn')],
[['if'], 'TINYINT', ['BOOLEAN', 'TINYINT', 'TINYINT'],
symbol('ConditionalFunctions', 'IfFn')],
[['if'], 'SMALLINT', ['BOOLEAN', 'SMALLINT', 'SMALLINT'],
symbol('ConditionalFunctions', 'IfFn')],
[['if'], 'INT', ['BOOLEAN', 'INT', 'INT'],
symbol('ConditionalFunctions', 'IfFn')],
[['if'], 'BIGINT', ['BOOLEAN', 'BIGINT', 'BIGINT'],
symbol('ConditionalFunctions', 'IfFn')],
[['if'], 'FLOAT', ['BOOLEAN', 'FLOAT', 'FLOAT'],
symbol('ConditionalFunctions', 'IfFn')],
[['if'], 'DOUBLE', ['BOOLEAN', 'DOUBLE', 'DOUBLE'],
symbol('ConditionalFunctions', 'IfFn')],
[['if'], 'STRING', ['BOOLEAN', 'STRING', 'STRING'],
symbol('ConditionalFunctions', 'IfFn')],
[['if'], 'TIMESTAMP', ['BOOLEAN', 'TIMESTAMP', 'TIMESTAMP'],
symbol('ConditionalFunctions', 'IfFn')],
[['if'], 'DECIMAL', ['BOOLEAN', 'DECIMAL', 'DECIMAL'],
symbol('ConditionalFunctions', 'IfFn')],
[['nullif'], 'BOOLEAN', ['BOOLEAN', 'BOOLEAN'],
symbol('ConditionalFunctions', 'NullIf', 'bool')],
[['nullif'], 'TINYINT', ['TINYINT', 'TINYINT'],
symbol('ConditionalFunctions', 'NullIf', 'int8_t')],
[['nullif'], 'SMALLINT', ['SMALLINT', 'SMALLINT'],
symbol('ConditionalFunctions', 'NullIf', 'int16_t')],
[['nullif'], 'INT', ['INT', 'INT'],
symbol('ConditionalFunctions', 'NullIf', 'int32_t')],
[['nullif'], 'BIGINT', ['BIGINT', 'BIGINT'],
symbol('ConditionalFunctions', 'NullIf', 'int64_t')],
[['nullif'], 'FLOAT', ['FLOAT', 'FLOAT'],
symbol('ConditionalFunctions', 'NullIf', 'float')],
[['nullif'], 'DOUBLE', ['DOUBLE', 'DOUBLE'],
symbol('ConditionalFunctions', 'NullIf', 'double')],
[['nullif'], 'STRING', ['STRING', 'STRING'],
symbol('ConditionalFunctions', 'NullIf', 'string')],
[['nullif'], 'TIMESTAMP', ['TIMESTAMP', 'TIMESTAMP'],
symbol('ConditionalFunctions', 'NullIf', 'timestamp')],
[['nullif'], 'DECIMAL', ['DECIMAL', 'DECIMAL'],
symbol('ConditionalFunctions', 'NullIfDecimal')],
[['zeroifnull'], 'TINYINT', ['TINYINT'],
symbol('ConditionalFunctions', 'ZeroIfNull', 'int8_t')],
[['zeroifnull'], 'SMALLINT', ['SMALLINT'],
symbol('ConditionalFunctions', 'ZeroIfNull', 'int16_t')],
[['zeroifnull'], 'INT', ['INT'],
symbol('ConditionalFunctions', 'ZeroIfNull', 'int32_t')],
[['zeroifnull'], 'BIGINT', ['BIGINT'],
symbol('ConditionalFunctions', 'ZeroIfNull', 'int64_t')],
[['zeroifnull'], 'FLOAT', ['FLOAT'],
symbol('ConditionalFunctions', 'ZeroIfNull', 'float')],
[['zeroifnull'], 'DOUBLE', ['DOUBLE'],
symbol('ConditionalFunctions', 'ZeroIfNull', 'double')],
[['zeroifnull'], 'DECIMAL', ['DECIMAL'],
symbol('ConditionalFunctions', 'ZeroIfNullDecimal')],
[['nullifzero'], 'TINYINT', ['TINYINT'],
symbol('ConditionalFunctions', 'NullIfZero', 'int8_t')],
[['nullifzero'], 'SMALLINT', ['SMALLINT'],
symbol('ConditionalFunctions', 'NullIfZero', 'int16_t')],
[['nullifzero'], 'INT', ['INT'],
symbol('ConditionalFunctions', 'NullIfZero', 'int32_t')],
[['nullifzero'], 'BIGINT', ['BIGINT'],
symbol('ConditionalFunctions', 'NullIfZero', 'int64_t')],
[['nullifzero'], 'FLOAT', ['FLOAT'],
symbol('ConditionalFunctions', 'NullIfZero', 'float')],
[['nullifzero'], 'DOUBLE', ['DOUBLE'],
symbol('ConditionalFunctions', 'NullIfZero', 'double')],
[['nullifzero'], 'DECIMAL', ['DECIMAL'],
symbol('ConditionalFunctions', 'NullIfZeroDecimal')],
[['isnull', 'ifnull', 'nvl'], 'BOOLEAN', ['BOOLEAN', 'BOOLEAN'],
symbol('ConditionalFunctions', 'IsNull')],
[['isnull', 'ifnull', 'nvl'], 'TINYINT', ['TINYINT', 'TINYINT'],
symbol('ConditionalFunctions', 'IsNull')],
[['isnull', 'ifnull', 'nvl'], 'SMALLINT', ['SMALLINT', 'SMALLINT'],
symbol('ConditionalFunctions', 'IsNull')],
[['isnull', 'ifnull', 'nvl'], 'INT', ['INT', 'INT'],
symbol('ConditionalFunctions', 'IsNull')],
[['isnull', 'ifnull', 'nvl'], 'BIGINT', ['BIGINT', 'BIGINT'],
symbol('ConditionalFunctions', 'IsNull')],
[['isnull', 'ifnull', 'nvl'], 'FLOAT', ['FLOAT', 'FLOAT'],
symbol('ConditionalFunctions', 'IsNull')],
[['isnull', 'ifnull', 'nvl'], 'DOUBLE', ['DOUBLE', 'DOUBLE'],
symbol('ConditionalFunctions', 'IsNull')],
[['isnull', 'ifnull', 'nvl'], 'STRING', ['STRING', 'STRING'],
symbol('ConditionalFunctions', 'IsNull')],
[['isnull', 'ifnull', 'nvl'], 'TIMESTAMP', ['TIMESTAMP', 'TIMESTAMP'],
symbol('ConditionalFunctions', 'IsNull')],
[['isnull', 'ifnull', 'nvl'], 'DECIMAL', ['DECIMAL', 'DECIMAL'],
symbol('ConditionalFunctions', 'IsNull')],
[['coalesce'], 'BOOLEAN', ['BOOLEAN', '...'],
symbol('ConditionalFunctions', 'Coalesce')],
[['coalesce'], 'TINYINT', ['TINYINT', '...'],
symbol('ConditionalFunctions', 'Coalesce')],
[['coalesce'], 'SMALLINT', ['SMALLINT', '...'],
symbol('ConditionalFunctions', 'Coalesce')],
[['coalesce'], 'INT', ['INT', '...'], symbol('ConditionalFunctions', 'Coalesce')],
[['coalesce'], 'BIGINT', ['BIGINT', '...'], symbol('ConditionalFunctions', 'Coalesce')],
[['coalesce'], 'FLOAT', ['FLOAT', '...'], symbol('ConditionalFunctions', 'Coalesce')],
[['coalesce'], 'DOUBLE', ['DOUBLE', '...'], symbol('ConditionalFunctions', 'Coalesce')],
[['coalesce'], 'STRING', ['STRING', '...'], symbol('ConditionalFunctions', 'Coalesce')],
[['coalesce'], 'TIMESTAMP', ['TIMESTAMP', '...'],
symbol('ConditionalFunctions', 'Coalesce')],
[['coalesce'], 'DECIMAL', ['DECIMAL', '...'],
symbol('ConditionalFunctions', 'Coalesce')],
]
# These functions are implemented against the UDF interface.
# TODO: this list should subsume the one above when all builtins are migrated.
udf_functions = [
[['udf_pi'], 'DOUBLE', [],
'_ZN6impala11UdfBuiltins2PiEPN10impala_udf15FunctionContextE'],
[['udf_abs'], 'DOUBLE', ['DOUBLE'],
'_ZN6impala11UdfBuiltins3AbsEPN10impala_udf15FunctionContextERKNS1_9DoubleValE'],
[['udf_lower'], 'STRING', ['STRING'],
'_ZN6impala11UdfBuiltins5LowerEPN10impala_udf15FunctionContextERKNS1_9StringValE'],
[['max_int'], 'INT', [],
'_ZN6impala11UdfBuiltins6MaxIntEPN10impala_udf15FunctionContextE'],
[['max_tinyint'], 'TINYINT', [],
'_ZN6impala11UdfBuiltins10MaxTinyIntEPN10impala_udf15FunctionContextE'],
[['max_smallint'], 'SMALLINT', [],
'_ZN6impala11UdfBuiltins11MaxSmallIntEPN10impala_udf15FunctionContextE'],
[['max_bigint'], 'BIGINT', [],
'_ZN6impala11UdfBuiltins9MaxBigIntEPN10impala_udf15FunctionContextE'],
[['min_int'], 'INT', [],
'_ZN6impala11UdfBuiltins6MinIntEPN10impala_udf15FunctionContextE'],
[['min_tinyint'], 'TINYINT', [],
'_ZN6impala11UdfBuiltins10MinTinyIntEPN10impala_udf15FunctionContextE'],
[['min_smallint'], 'SMALLINT', [],
'_ZN6impala11UdfBuiltins11MinSmallIntEPN10impala_udf15FunctionContextE'],
[['min_bigint'], 'BIGINT', [],
'_ZN6impala11UdfBuiltins9MinBigIntEPN10impala_udf15FunctionContextE'],
[['is_nan'], 'BOOLEAN', ['DOUBLE'],
'_ZN6impala11UdfBuiltins5IsNanEPN10impala_udf15FunctionContextERKNS1_9DoubleValE'],
[['is_inf'], 'BOOLEAN', ['DOUBLE'],
'_ZN6impala11UdfBuiltins5IsInfEPN10impala_udf15FunctionContextERKNS1_9DoubleValE'],
[['trunc'], 'TIMESTAMP', ['TIMESTAMP', 'STRING'],
'_ZN6impala11UdfBuiltins5TruncEPN10impala_udf15FunctionContextERKNS1_12TimestampValERKNS1_9StringValE',
'_ZN6impala11UdfBuiltins12TruncPrepareEPN10impala_udf15FunctionContextENS2_18FunctionStateScopeE',
'_ZN6impala11UdfBuiltins10TruncCloseEPN10impala_udf15FunctionContextENS2_18FunctionStateScopeE'],
[['extract'], 'INT', ['TIMESTAMP', 'STRING'],
'_ZN6impala11UdfBuiltins7ExtractEPN10impala_udf15FunctionContextERKNS1_12TimestampValERKNS1_9StringValE',
'_ZN6impala11UdfBuiltins14ExtractPrepareEPN10impala_udf15FunctionContextENS2_18FunctionStateScopeE',
'_ZN6impala11UdfBuiltins12ExtractCloseEPN10impala_udf15FunctionContextENS2_18FunctionStateScopeE'],
[['madlib_encode_vector'], 'STRING', ['STRING'],
'_ZN6impala11UdfBuiltins12EncodeVectorEPN10impala_udf15FunctionContextERKNS1_9StringValE'],
[['madlib_decode_vector'], 'STRING', ['STRING'],
'_ZN6impala11UdfBuiltins12DecodeVectorEPN10impala_udf15FunctionContextERKNS1_9StringValE'],
[['madlib_print_vector'], 'STRING', ['STRING'],
'_ZN6impala11UdfBuiltins11PrintVectorEPN10impala_udf15FunctionContextERKNS1_9StringValE'],
[['madlib_vector'], 'STRING', ['DOUBLE', '...'],
'_ZN6impala11UdfBuiltins8ToVectorEPN10impala_udf15FunctionContextEiPKNS1_9DoubleValE'],
[['madlib_vector_get'], 'DOUBLE', ['BIGINT', 'STRING'],
'_ZN6impala11UdfBuiltins9VectorGetEPN10impala_udf15FunctionContextERKNS1_9BigIntValERKNS1_9StringValE'],
[['unix_timestamp'], 'INT', ['STRING'], '_ZN6impala18TimestampFunctions14UnixFromStringEPN10impala_udf15FunctionContextERKNS1_9StringValE'],
[['year'], 'INT', ['TIMESTAMP'], '_ZN6impala18TimestampFunctions4YearEPN10impala_udf15FunctionContextERKNS1_12TimestampValE'],
[['month'], 'INT', ['TIMESTAMP'], '_ZN6impala18TimestampFunctions5MonthEPN10impala_udf15FunctionContextERKNS1_12TimestampValE'],
[['dayofweek'], 'INT', ['TIMESTAMP'], '_ZN6impala18TimestampFunctions9DayOfWeekEPN10impala_udf15FunctionContextERKNS1_12TimestampValE'],
[['day', 'dayofmonth'], 'INT', ['TIMESTAMP'], '_ZN6impala18TimestampFunctions10DayOfMonthEPN10impala_udf15FunctionContextERKNS1_12TimestampValE'],
[['dayofyear'], 'INT', ['TIMESTAMP'], '_ZN6impala18TimestampFunctions9DayOfYearEPN10impala_udf15FunctionContextERKNS1_12TimestampValE'],
[['weekofyear'], 'INT', ['TIMESTAMP'], '_ZN6impala18TimestampFunctions10WeekOfYearEPN10impala_udf15FunctionContextERKNS1_12TimestampValE'],
[['hour'], 'INT', ['TIMESTAMP'], '_ZN6impala18TimestampFunctions4HourEPN10impala_udf15FunctionContextERKNS1_12TimestampValE'],
[['minute'], 'INT', ['TIMESTAMP'], '_ZN6impala18TimestampFunctions6MinuteEPN10impala_udf15FunctionContextERKNS1_12TimestampValE'],
[['second'], 'INT', ['TIMESTAMP'], '_ZN6impala18TimestampFunctions6SecondEPN10impala_udf15FunctionContextERKNS1_12TimestampValE'],
[['to_date'], 'STRING', ['TIMESTAMP'], '_ZN6impala18TimestampFunctions6ToDateEPN10impala_udf15FunctionContextERKNS1_12TimestampValE'],
[['dayname'], 'STRING', ['TIMESTAMP'], '_ZN6impala18TimestampFunctions7DayNameEPN10impala_udf15FunctionContextERKNS1_12TimestampValE'],
[['years_add'], 'TIMESTAMP', ['TIMESTAMP', 'INT'],
'_ZN6impala18TimestampFunctions10DateAddSubILb1EN10impala_udf6IntValEN5boost9date_time14years_durationINS4_9gregorian21greg_durations_configEEEEENS2_12TimestampValEPNS2_15FunctionContextERKSA_RKT0_'],
[['years_add'], 'TIMESTAMP', ['TIMESTAMP', 'BIGINT'],
'_ZN6impala18TimestampFunctions10DateAddSubILb1EN10impala_udf9BigIntValEN5boost9date_time14years_durationINS4_9gregorian21greg_durations_configEEEEENS2_12TimestampValEPNS2_15FunctionContextERKSA_RKT0_'],
[['years_sub'], 'TIMESTAMP', ['TIMESTAMP', 'INT'],
'_ZN6impala18TimestampFunctions10DateAddSubILb0EN10impala_udf6IntValEN5boost9date_time14years_durationINS4_9gregorian21greg_durations_configEEEEENS2_12TimestampValEPNS2_15FunctionContextERKSA_RKT0_'],
[['years_sub'], 'TIMESTAMP', ['TIMESTAMP', 'BIGINT'],
'_ZN6impala18TimestampFunctions10DateAddSubILb0EN10impala_udf9BigIntValEN5boost9date_time14years_durationINS4_9gregorian21greg_durations_configEEEEENS2_12TimestampValEPNS2_15FunctionContextERKSA_RKT0_'],
[['months_add', 'add_months'], 'TIMESTAMP', ['TIMESTAMP', 'INT'],
'_ZN6impala18TimestampFunctions10DateAddSubILb1EN10impala_udf6IntValEN5boost9date_time15months_durationINS4_9gregorian21greg_durations_configEEEEENS2_12TimestampValEPNS2_15FunctionContextERKSA_RKT0_'],
[['months_add', 'add_months'], 'TIMESTAMP', ['TIMESTAMP', 'BIGINT'],
'_ZN6impala18TimestampFunctions10DateAddSubILb1EN10impala_udf9BigIntValEN5boost9date_time15months_durationINS4_9gregorian21greg_durations_configEEEEENS2_12TimestampValEPNS2_15FunctionContextERKSA_RKT0_'],
[['months_sub'], 'TIMESTAMP', ['TIMESTAMP', 'INT'],
'_ZN6impala18TimestampFunctions10DateAddSubILb0EN10impala_udf6IntValEN5boost9date_time15months_durationINS4_9gregorian21greg_durations_configEEEEENS2_12TimestampValEPNS2_15FunctionContextERKSA_RKT0_'],
[['months_sub'], 'TIMESTAMP', ['TIMESTAMP', 'BIGINT'],
'_ZN6impala18TimestampFunctions10DateAddSubILb0EN10impala_udf9BigIntValEN5boost9date_time15months_durationINS4_9gregorian21greg_durations_configEEEEENS2_12TimestampValEPNS2_15FunctionContextERKSA_RKT0_'],
[['weeks_add'], 'TIMESTAMP', ['TIMESTAMP', 'INT'],
'_ZN6impala18TimestampFunctions10DateAddSubILb1EN10impala_udf6IntValEN5boost9gregorian14weeks_durationEEENS2_12TimestampValEPNS2_15FunctionContextERKS7_RKT0_'],
[['weeks_add'], 'TIMESTAMP', ['TIMESTAMP', 'BIGINT'],
'_ZN6impala18TimestampFunctions10DateAddSubILb1EN10impala_udf9BigIntValEN5boost9gregorian14weeks_durationEEENS2_12TimestampValEPNS2_15FunctionContextERKS7_RKT0_'],
[['weeks_sub'], 'TIMESTAMP', ['TIMESTAMP', 'INT'],
'_ZN6impala18TimestampFunctions10DateAddSubILb0EN10impala_udf6IntValEN5boost9gregorian14weeks_durationEEENS2_12TimestampValEPNS2_15FunctionContextERKS7_RKT0_'],
[['weeks_sub'], 'TIMESTAMP', ['TIMESTAMP', 'BIGINT'],
'_ZN6impala18TimestampFunctions10DateAddSubILb0EN10impala_udf9BigIntValEN5boost9gregorian14weeks_durationEEENS2_12TimestampValEPNS2_15FunctionContextERKS7_RKT0_'],
[['days_add', 'date_add', 'adddate'], 'TIMESTAMP', ['TIMESTAMP', 'INT'],
'_ZN6impala18TimestampFunctions10DateAddSubILb1EN10impala_udf6IntValEN5boost9gregorian13date_durationEEENS2_12TimestampValEPNS2_15FunctionContextERKS7_RKT0_'],
[['days_add', 'date_add', 'adddate'], 'TIMESTAMP', ['TIMESTAMP', 'BIGINT'],
'_ZN6impala18TimestampFunctions10DateAddSubILb1EN10impala_udf9BigIntValEN5boost9gregorian13date_durationEEENS2_12TimestampValEPNS2_15FunctionContextERKS7_RKT0_'],
[['days_sub', 'date_sub', 'subdate'], 'TIMESTAMP', ['TIMESTAMP', 'INT'],
'_ZN6impala18TimestampFunctions10DateAddSubILb0EN10impala_udf6IntValEN5boost9gregorian13date_durationEEENS2_12TimestampValEPNS2_15FunctionContextERKS7_RKT0_'],
[['days_sub', 'date_sub', 'subdate'], 'TIMESTAMP', ['TIMESTAMP', 'BIGINT'],
'_ZN6impala18TimestampFunctions10DateAddSubILb0EN10impala_udf9BigIntValEN5boost9gregorian13date_durationEEENS2_12TimestampValEPNS2_15FunctionContextERKS7_RKT0_'],
[['hours_add'], 'TIMESTAMP', ['TIMESTAMP', 'INT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb1EN10impala_udf6IntValEN5boost10posix_time5hoursEEENS2_12TimestampValEPNS2_15FunctionContextERKS7_RKT0_'],
[['hours_add'], 'TIMESTAMP', ['TIMESTAMP', 'BIGINT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb1EN10impala_udf9BigIntValEN5boost10posix_time5hoursEEENS2_12TimestampValEPNS2_15FunctionContextERKS7_RKT0_'],
[['hours_sub'], 'TIMESTAMP', ['TIMESTAMP', 'INT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb0EN10impala_udf6IntValEN5boost10posix_time5hoursEEENS2_12TimestampValEPNS2_15FunctionContextERKS7_RKT0_'],
[['hours_sub'], 'TIMESTAMP', ['TIMESTAMP', 'BIGINT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb0EN10impala_udf9BigIntValEN5boost10posix_time5hoursEEENS2_12TimestampValEPNS2_15FunctionContextERKS7_RKT0_'],
[['minutes_add'], 'TIMESTAMP', ['TIMESTAMP', 'INT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb1EN10impala_udf6IntValEN5boost10posix_time7minutesEEENS2_12TimestampValEPNS2_15FunctionContextERKS7_RKT0_'],
[['minutes_add'], 'TIMESTAMP', ['TIMESTAMP', 'BIGINT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb1EN10impala_udf9BigIntValEN5boost10posix_time7minutesEEENS2_12TimestampValEPNS2_15FunctionContextERKS7_RKT0_'],
[['minutes_sub'], 'TIMESTAMP', ['TIMESTAMP', 'INT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb0EN10impala_udf6IntValEN5boost10posix_time7minutesEEENS2_12TimestampValEPNS2_15FunctionContextERKS7_RKT0_'],
[['minutes_sub'], 'TIMESTAMP', ['TIMESTAMP', 'BIGINT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb0EN10impala_udf9BigIntValEN5boost10posix_time7minutesEEENS2_12TimestampValEPNS2_15FunctionContextERKS7_RKT0_'],
[['seconds_add'], 'TIMESTAMP', ['TIMESTAMP', 'INT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb1EN10impala_udf6IntValEN5boost10posix_time7secondsEEENS2_12TimestampValEPNS2_15FunctionContextERKS7_RKT0_'],
[['seconds_add'], 'TIMESTAMP', ['TIMESTAMP', 'BIGINT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb1EN10impala_udf9BigIntValEN5boost10posix_time7secondsEEENS2_12TimestampValEPNS2_15FunctionContextERKS7_RKT0_'],
[['seconds_sub'], 'TIMESTAMP', ['TIMESTAMP', 'INT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb0EN10impala_udf6IntValEN5boost10posix_time7secondsEEENS2_12TimestampValEPNS2_15FunctionContextERKS7_RKT0_'],
[['seconds_sub'], 'TIMESTAMP', ['TIMESTAMP', 'BIGINT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb0EN10impala_udf9BigIntValEN5boost10posix_time7secondsEEENS2_12TimestampValEPNS2_15FunctionContextERKS7_RKT0_'],
[['milliseconds_add'], 'TIMESTAMP', ['TIMESTAMP', 'INT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb1EN10impala_udf6IntValEN5boost9date_time18subsecond_durationINS4_10posix_time13time_durationELl1000EEEEENS2_12TimestampValEPNS2_15FunctionContextERKSA_RKT0_'],
[['milliseconds_add'], 'TIMESTAMP', ['TIMESTAMP', 'BIGINT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb1EN10impala_udf9BigIntValEN5boost9date_time18subsecond_durationINS4_10posix_time13time_durationELl1000EEEEENS2_12TimestampValEPNS2_15FunctionContextERKSA_RKT0_'],
[['milliseconds_sub'], 'TIMESTAMP', ['TIMESTAMP', 'INT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb0EN10impala_udf6IntValEN5boost9date_time18subsecond_durationINS4_10posix_time13time_durationELl1000EEEEENS2_12TimestampValEPNS2_15FunctionContextERKSA_RKT0_'],
[['milliseconds_sub'], 'TIMESTAMP', ['TIMESTAMP', 'BIGINT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb0EN10impala_udf9BigIntValEN5boost9date_time18subsecond_durationINS4_10posix_time13time_durationELl1000EEEEENS2_12TimestampValEPNS2_15FunctionContextERKSA_RKT0_'],
[['microseconds_add'], 'TIMESTAMP', ['TIMESTAMP', 'INT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb1EN10impala_udf6IntValEN5boost9date_time18subsecond_durationINS4_10posix_time13time_durationELl1000000EEEEENS2_12TimestampValEPNS2_15FunctionContextERKSA_RKT0_'],
[['microseconds_add'], 'TIMESTAMP', ['TIMESTAMP', 'BIGINT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb1EN10impala_udf9BigIntValEN5boost9date_time18subsecond_durationINS4_10posix_time13time_durationELl1000000EEEEENS2_12TimestampValEPNS2_15FunctionContextERKSA_RKT0_'],
[['microseconds_sub'], 'TIMESTAMP', ['TIMESTAMP', 'INT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb0EN10impala_udf6IntValEN5boost9date_time18subsecond_durationINS4_10posix_time13time_durationELl1000000EEEEENS2_12TimestampValEPNS2_15FunctionContextERKSA_RKT0_'],
[['microseconds_sub'], 'TIMESTAMP', ['TIMESTAMP', 'BIGINT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb0EN10impala_udf9BigIntValEN5boost9date_time18subsecond_durationINS4_10posix_time13time_durationELl1000000EEEEENS2_12TimestampValEPNS2_15FunctionContextERKSA_RKT0_'],
[['nanoseconds_add'], 'TIMESTAMP', ['TIMESTAMP', 'INT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb1EN10impala_udf6IntValEN5boost9date_time18subsecond_durationINS4_10posix_time13time_durationELl1000000000EEEEENS2_12TimestampValEPNS2_15FunctionContextERKSA_RKT0_'],
[['nanoseconds_add'], 'TIMESTAMP', ['TIMESTAMP', 'BIGINT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb1EN10impala_udf9BigIntValEN5boost9date_time18subsecond_durationINS4_10posix_time13time_durationELl1000000000EEEEENS2_12TimestampValEPNS2_15FunctionContextERKSA_RKT0_'],
[['nanoseconds_sub'], 'TIMESTAMP', ['TIMESTAMP', 'INT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb0EN10impala_udf6IntValEN5boost9date_time18subsecond_durationINS4_10posix_time13time_durationELl1000000000EEEEENS2_12TimestampValEPNS2_15FunctionContextERKSA_RKT0_'],
[['nanoseconds_sub'], 'TIMESTAMP', ['TIMESTAMP', 'BIGINT'],
'_ZN6impala18TimestampFunctions10TimeAddSubILb0EN10impala_udf9BigIntValEN5boost9date_time18subsecond_durationINS4_10posix_time13time_durationELl1000000000EEEEENS2_12TimestampValEPNS2_15FunctionContextERKSA_RKT0_'],
[['datediff'], 'INT', ['TIMESTAMP', 'TIMESTAMP'], '_ZN6impala18TimestampFunctions8DateDiffEPN10impala_udf15FunctionContextERKNS1_12TimestampValES6_'],
[['unix_timestamp'], 'INT', [], '_ZN6impala18TimestampFunctions4UnixEPN10impala_udf15FunctionContextE'],
[['unix_timestamp'], 'INT', ['TIMESTAMP'], '_ZN6impala18TimestampFunctions4UnixEPN10impala_udf15FunctionContextERKNS1_12TimestampValE'],
[['unix_timestamp'], 'INT', ['STRING', 'STRING'], '_ZN6impala18TimestampFunctions4UnixEPN10impala_udf15FunctionContextERKNS1_9StringValES6_',
'_ZN6impala18TimestampFunctions22UnixAndFromUnixPrepareEPN10impala_udf15FunctionContextENS2_18FunctionStateScopeE',
'_ZN6impala18TimestampFunctions20UnixAndFromUnixCloseEPN10impala_udf15FunctionContextENS2_18FunctionStateScopeE'],
[['from_unixtime'], 'STRING', ['INT'],
'_ZN6impala18TimestampFunctions8FromUnixIN10impala_udf6IntValEEENS2_9StringValEPNS2_15FunctionContextERKT_'],
[['from_unixtime'], 'STRING', ['INT', 'STRING'],
'_ZN6impala18TimestampFunctions8FromUnixIN10impala_udf6IntValEEENS2_9StringValEPNS2_15FunctionContextERKT_RKS4_',
'_ZN6impala18TimestampFunctions22UnixAndFromUnixPrepareEPN10impala_udf15FunctionContextENS2_18FunctionStateScopeE',
'_ZN6impala18TimestampFunctions20UnixAndFromUnixCloseEPN10impala_udf15FunctionContextENS2_18FunctionStateScopeE'],
[['from_unixtime'], 'STRING', ['BIGINT'],
'_ZN6impala18TimestampFunctions8FromUnixIN10impala_udf9BigIntValEEENS2_9StringValEPNS2_15FunctionContextERKT_'],
[['from_unixtime'], 'STRING', ['BIGINT', 'STRING'],
'_ZN6impala18TimestampFunctions8FromUnixIN10impala_udf9BigIntValEEENS2_9StringValEPNS2_15FunctionContextERKT_RKS4_',
'_ZN6impala18TimestampFunctions22UnixAndFromUnixPrepareEPN10impala_udf15FunctionContextENS2_18FunctionStateScopeE',
'_ZN6impala18TimestampFunctions20UnixAndFromUnixCloseEPN10impala_udf15FunctionContextENS2_18FunctionStateScopeE'],
[['now', 'current_timestamp'], 'TIMESTAMP', [], '_ZN6impala18TimestampFunctions3NowEPN10impala_udf15FunctionContextE'],
# Math builtin functions
[['pi'], 'DOUBLE', [], 'impala::MathFunctions::Pi'],
[['e'], 'DOUBLE', [], 'impala::MathFunctions::E'],
[['abs'], 'DOUBLE', ['DOUBLE'], 'impala::MathFunctions::Abs'],
[['sign'], 'FLOAT', ['DOUBLE'], 'impala::MathFunctions::Sign'],
[['sin'], 'DOUBLE', ['DOUBLE'], 'impala::MathFunctions::Sin'],
[['asin'], 'DOUBLE', ['DOUBLE'], 'impala::MathFunctions::Asin'],
[['cos'], 'DOUBLE', ['DOUBLE'], 'impala::MathFunctions::Cos'],
[['acos'], 'DOUBLE', ['DOUBLE'], 'impala::MathFunctions::Acos'],
[['tan'], 'DOUBLE', ['DOUBLE'], 'impala::MathFunctions::Tan'],
[['atan'], 'DOUBLE', ['DOUBLE'], 'impala::MathFunctions::Atan'],
[['radians'], 'DOUBLE', ['DOUBLE'], 'impala::MathFunctions::Radians'],
[['degrees'], 'DOUBLE', ['DOUBLE'], 'impala::MathFunctions::Degrees'],
[['ceil', 'ceiling'], 'BIGINT', ['DOUBLE'], 'impala::MathFunctions::Ceil'],
[['floor'], 'BIGINT', ['DOUBLE'], 'impala::MathFunctions::Floor'],
[['round'], 'BIGINT', ['DOUBLE'], 'impala::MathFunctions::Round'],
[['round'], 'DOUBLE', ['DOUBLE', 'INT'], 'impala::MathFunctions::RoundUpTo'],
[['exp'], 'DOUBLE', ['DOUBLE'], 'impala::MathFunctions::Exp'],
[['ln'], 'DOUBLE', ['DOUBLE'], 'impala::MathFunctions::Ln'],
[['log10'], 'DOUBLE', ['DOUBLE'], 'impala::MathFunctions::Log10'],
[['log2'], 'DOUBLE', ['DOUBLE'], 'impala::MathFunctions::Log2'],
[['log'], 'DOUBLE', ['DOUBLE', 'DOUBLE'], 'impala::MathFunctions::Log'],
[['pow', 'power'], 'DOUBLE', ['DOUBLE', 'DOUBLE'], 'impala::MathFunctions::Pow'],
[['sqrt'], 'DOUBLE', ['DOUBLE'], 'impala::MathFunctions::Sqrt'],
[['rand'], 'DOUBLE', [], 'impala::MathFunctions::Rand',
'_ZN6impala13MathFunctions11RandPrepareEPN10impala_udf15FunctionContextENS2_18FunctionStateScopeE'],
[['rand'], 'DOUBLE', ['BIGINT'], 'impala::MathFunctions::RandSeed',
'_ZN6impala13MathFunctions11RandPrepareEPN10impala_udf15FunctionContextENS2_18FunctionStateScopeE'],
[['bin'], 'STRING', ['BIGINT'], 'impala::MathFunctions::Bin'],
[['hex'], 'STRING', ['BIGINT'], 'impala::MathFunctions::HexInt'],
[['hex'], 'STRING', ['STRING'], 'impala::MathFunctions::HexString'],
[['unhex'], 'STRING', ['STRING'], 'impala::MathFunctions::Unhex'],
[['conv'], 'STRING', ['BIGINT', 'TINYINT', 'TINYINT'],
'impala::MathFunctions::ConvInt'],
[['conv'], 'STRING', ['STRING', 'TINYINT', 'TINYINT'],
'impala::MathFunctions::ConvString'],
[['pmod'], 'BIGINT', ['BIGINT', 'BIGINT'], 'impala::MathFunctions::PmodBigInt'],
[['pmod'], 'DOUBLE', ['DOUBLE', 'DOUBLE'], 'impala::MathFunctions::PmodDouble'],
[['fmod'], 'FLOAT', ['FLOAT', 'FLOAT'], 'impala::MathFunctions::FmodFloat'],
[['fmod'], 'DOUBLE', ['DOUBLE', 'DOUBLE'], 'impala::MathFunctions::FmodDouble'],
[['positive'], 'TINYINT', ['TINYINT'],
'_ZN6impala13MathFunctions8PositiveIN10impala_udf10TinyIntValEEET_PNS2_15FunctionContextERKS4_'],
[['positive'], 'SMALLINT', ['SMALLINT'],
'_ZN6impala13MathFunctions8PositiveIN10impala_udf11SmallIntValEEET_PNS2_15FunctionContextERKS4_'],
[['positive'], 'INT', ['INT'],
'_ZN6impala13MathFunctions8PositiveIN10impala_udf6IntValEEET_PNS2_15FunctionContextERKS4_'],
[['positive'], 'BIGINT', ['BIGINT'],
'_ZN6impala13MathFunctions8PositiveIN10impala_udf9BigIntValEEET_PNS2_15FunctionContextERKS4_'],
[['positive'], 'FLOAT', ['FLOAT'],
'_ZN6impala13MathFunctions8PositiveIN10impala_udf8FloatValEEET_PNS2_15FunctionContextERKS4_'],
[['positive'], 'DOUBLE', ['DOUBLE'],
'_ZN6impala13MathFunctions8PositiveIN10impala_udf9DoubleValEEET_PNS2_15FunctionContextERKS4_'],
[['positive'], 'DECIMAL', ['DECIMAL'],
'_ZN6impala13MathFunctions8PositiveIN10impala_udf10DecimalValEEET_PNS2_15FunctionContextERKS4_'],
[['negative'], 'TINYINT', ['TINYINT'],
'_ZN6impala13MathFunctions8NegativeIN10impala_udf10TinyIntValEEET_PNS2_15FunctionContextERKS4_'],
[['negative'], 'SMALLINT', ['SMALLINT'],
'_ZN6impala13MathFunctions8NegativeIN10impala_udf11SmallIntValEEET_PNS2_15FunctionContextERKS4_'],
[['negative'], 'INT', ['INT'],
'_ZN6impala13MathFunctions8NegativeIN10impala_udf6IntValEEET_PNS2_15FunctionContextERKS4_'],
[['negative'], 'BIGINT', ['BIGINT'],
'_ZN6impala13MathFunctions8NegativeIN10impala_udf9BigIntValEEET_PNS2_15FunctionContextERKS4_'],
[['negative'], 'FLOAT', ['FLOAT'],
'_ZN6impala13MathFunctions8NegativeIN10impala_udf8FloatValEEET_PNS2_15FunctionContextERKS4_'],
[['negative'], 'DOUBLE', ['DOUBLE'],
'_ZN6impala13MathFunctions8NegativeIN10impala_udf9DoubleValEEET_PNS2_15FunctionContextERKS4_'],
[['negative'], 'DECIMAL', ['DECIMAL'],
'_ZN6impala13MathFunctions8NegativeIN10impala_udf10DecimalValEEET_PNS2_15FunctionContextERKS4_'],
[['quotient'], 'BIGINT', ['BIGINT', 'BIGINT'],
'impala::MathFunctions::QuotientBigInt'],
[['quotient'], 'BIGINT', ['DOUBLE', 'DOUBLE'],
'impala::MathFunctions::QuotientDouble'],
[['least'], 'TINYINT', ['TINYINT', '...'],
'_ZN6impala13MathFunctions13LeastGreatestIN10impala_udf10TinyIntValELb1EEET_PNS2_15FunctionContextEiPKS4_'],
[['least'], 'SMALLINT', ['SMALLINT', '...'],
'_ZN6impala13MathFunctions13LeastGreatestIN10impala_udf11SmallIntValELb1EEET_PNS2_15FunctionContextEiPKS4_'],
[['least'], 'INT', ['INT', '...'],
'_ZN6impala13MathFunctions13LeastGreatestIN10impala_udf6IntValELb1EEET_PNS2_15FunctionContextEiPKS4_'],
[['least'], 'BIGINT', ['BIGINT', '...'],
'_ZN6impala13MathFunctions13LeastGreatestIN10impala_udf9BigIntValELb1EEET_PNS2_15FunctionContextEiPKS4_'],
[['least'], 'FLOAT', ['FLOAT', '...'],
'_ZN6impala13MathFunctions13LeastGreatestIN10impala_udf8FloatValELb1EEET_PNS2_15FunctionContextEiPKS4_'],
[['least'], 'DOUBLE', ['DOUBLE', '...'],
'_ZN6impala13MathFunctions13LeastGreatestIN10impala_udf9DoubleValELb1EEET_PNS2_15FunctionContextEiPKS4_'],
[['least'], 'TIMESTAMP', ['TIMESTAMP', '...'],
'_ZN6impala13MathFunctions13LeastGreatestILb1EEEN10impala_udf12TimestampValEPNS2_15FunctionContextEiPKS3_'],
[['least'], 'STRING', ['STRING', '...'],
'_ZN6impala13MathFunctions13LeastGreatestILb1EEEN10impala_udf9StringValEPNS2_15FunctionContextEiPKS3_'],
[['least'], 'DECIMAL', ['DECIMAL', '...'],
'_ZN6impala13MathFunctions13LeastGreatestILb1EEEN10impala_udf10DecimalValEPNS2_15FunctionContextEiPKS3_'],
[['greatest'], 'TINYINT', ['TINYINT', '...'],
'_ZN6impala13MathFunctions13LeastGreatestIN10impala_udf10TinyIntValELb0EEET_PNS2_15FunctionContextEiPKS4_'],
[['greatest'], 'SMALLINT', ['SMALLINT', '...'],
'_ZN6impala13MathFunctions13LeastGreatestIN10impala_udf11SmallIntValELb0EEET_PNS2_15FunctionContextEiPKS4_'],
[['greatest'], 'INT', ['INT', '...'],
'_ZN6impala13MathFunctions13LeastGreatestIN10impala_udf6IntValELb0EEET_PNS2_15FunctionContextEiPKS4_'],
[['greatest'], 'BIGINT', ['BIGINT', '...'],
'_ZN6impala13MathFunctions13LeastGreatestIN10impala_udf9BigIntValELb0EEET_PNS2_15FunctionContextEiPKS4_'],
[['greatest'], 'FLOAT', ['FLOAT', '...'],
'_ZN6impala13MathFunctions13LeastGreatestIN10impala_udf8FloatValELb0EEET_PNS2_15FunctionContextEiPKS4_'],
[['greatest'], 'DOUBLE', ['DOUBLE', '...'],
'_ZN6impala13MathFunctions13LeastGreatestIN10impala_udf9DoubleValELb0EEET_PNS2_15FunctionContextEiPKS4_'],
[['greatest'], 'TIMESTAMP', ['TIMESTAMP', '...'],
'_ZN6impala13MathFunctions13LeastGreatestILb0EEEN10impala_udf12TimestampValEPNS2_15FunctionContextEiPKS3_'],
[['greatest'], 'STRING', ['STRING', '...'],
'_ZN6impala13MathFunctions13LeastGreatestILb0EEEN10impala_udf9StringValEPNS2_15FunctionContextEiPKS3_'],
[['greatest'], 'DECIMAL', ['DECIMAL', '...'],
'_ZN6impala13MathFunctions13LeastGreatestILb0EEEN10impala_udf10DecimalValEPNS2_15FunctionContextEiPKS3_'],
# Decimal Functions
# TODO: oracle has decimal support for transcendental functions (e.g. sin()) to very
# high precisions. Do we need them? It's unclear if other databases do the same.
[['precision'], 'INT', ['DECIMAL'], 'impala::DecimalFunctions::Precision'],
[['scale'], 'INT', ['DECIMAL'], 'impala::DecimalFunctions::Scale'],
[['abs'], 'DECIMAL', ['DECIMAL'], 'impala::DecimalFunctions::Abs'],
[['ceil', 'ceiling'], 'DECIMAL', ['DECIMAL'], 'impala::DecimalFunctions::Ceil'],
[['floor'], 'DECIMAL', ['DECIMAL'], 'impala::DecimalFunctions::Floor'],
[['round'], 'DECIMAL', ['DECIMAL'], 'impala::DecimalFunctions::Round'],
[['round'], 'DECIMAL', ['DECIMAL', 'TINYINT'], 'impala::DecimalFunctions::RoundTo'],
[['round'], 'DECIMAL', ['DECIMAL', 'SMALLINT'], 'impala::DecimalFunctions::RoundTo'],
[['round'], 'DECIMAL', ['DECIMAL', 'INT'], 'impala::DecimalFunctions::RoundTo'],
[['round'], 'DECIMAL', ['DECIMAL', 'BIGINT'], 'impala::DecimalFunctions::RoundTo'],
[['truncate'], 'DECIMAL', ['DECIMAL'], 'impala::DecimalFunctions::Truncate'],
[['truncate'], 'DECIMAL', ['DECIMAL', 'TINYINT'],
'impala::DecimalFunctions::TruncateTo'],
[['truncate'], 'DECIMAL', ['DECIMAL', 'SMALLINT'],
'impala::DecimalFunctions::TruncateTo'],
[['truncate'], 'DECIMAL', ['DECIMAL', 'INT'],
'impala::DecimalFunctions::TruncateTo'],
[['truncate'], 'DECIMAL', ['DECIMAL', 'BIGINT'],
'impala::DecimalFunctions::TruncateTo'],
# String builtin functions
[['substr', 'substring'], 'STRING', ['STRING', 'BIGINT'],
'impala::StringFunctions::Substring'],
[['substr', 'substring'], 'STRING', ['STRING', 'BIGINT', 'BIGINT'],
'impala::StringFunctions::Substring'],
# left and right are key words, leave them out for now.
[['strleft'], 'STRING', ['STRING', 'BIGINT'], 'impala::StringFunctions::Left'],
[['strright'], 'STRING', ['STRING', 'BIGINT'], 'impala::StringFunctions::Right'],
[['space'], 'STRING', ['BIGINT'], 'impala::StringFunctions::Space'],
[['repeat'], 'STRING', ['STRING', 'BIGINT'], 'impala::StringFunctions::Repeat'],
[['lpad'], 'STRING', ['STRING', 'BIGINT', 'STRING'], 'impala::StringFunctions::Lpad'],
[['rpad'], 'STRING', ['STRING', 'BIGINT', 'STRING'], 'impala::StringFunctions::Rpad'],
[['length'], 'INT', ['STRING'], 'impala::StringFunctions::Length'],
[['char_length'], 'INT', ['STRING'], 'impala::StringFunctions::Length'],
[['character_length'], 'INT', ['STRING'], 'impala::StringFunctions::Length'],
[['lower', 'lcase'], 'STRING', ['STRING'], 'impala::StringFunctions::Lower'],
[['upper', 'ucase'], 'STRING', ['STRING'], 'impala::StringFunctions::Upper'],
[['initcap'], 'STRING', ['STRING'], 'impala::StringFunctions::InitCap'],
[['reverse'], 'STRING', ['STRING'], 'impala::StringFunctions::Reverse'],
[['translate'], 'STRING', ['STRING', 'STRING', 'STRING'],
'impala::StringFunctions::Translate'],
[['trim'], 'STRING', ['STRING'], 'impala::StringFunctions::Trim'],
[['ltrim'], 'STRING', ['STRING'], 'impala::StringFunctions::Ltrim'],
[['rtrim'], 'STRING', ['STRING'], 'impala::StringFunctions::Rtrim'],
[['ascii'], 'INT', ['STRING'], 'impala::StringFunctions::Ascii'],
[['instr'], 'INT', ['STRING', 'STRING'], 'impala::StringFunctions::Instr'],
[['locate'], 'INT', ['STRING', 'STRING'], 'impala::StringFunctions::Locate'],
[['locate'], 'INT', ['STRING', 'STRING', 'BIGINT'],
'impala::StringFunctions::LocatePos'],
[['regexp_extract'], 'STRING', ['STRING', 'STRING', 'BIGINT'],
'impala::StringFunctions::RegexpExtract',
'_ZN6impala15StringFunctions13RegexpPrepareEPN10impala_udf15FunctionContextENS2_18FunctionStateScopeE',
'_ZN6impala15StringFunctions11RegexpCloseEPN10impala_udf15FunctionContextENS2_18FunctionStateScopeE'],
[['regexp_replace'], 'STRING', ['STRING', 'STRING', 'STRING'],
'impala::StringFunctions::RegexpReplace',
'_ZN6impala15StringFunctions13RegexpPrepareEPN10impala_udf15FunctionContextENS2_18FunctionStateScopeE',
'_ZN6impala15StringFunctions11RegexpCloseEPN10impala_udf15FunctionContextENS2_18FunctionStateScopeE'],
[['concat'], 'STRING', ['STRING', '...'], 'impala::StringFunctions::Concat'],
[['concat_ws'], 'STRING', ['STRING', 'STRING', '...'],
'impala::StringFunctions::ConcatWs'],
[['find_in_set'], 'INT', ['STRING', 'STRING'], 'impala::StringFunctions::FindInSet'],
[['parse_url'], 'STRING', ['STRING', 'STRING'], 'impala::StringFunctions::ParseUrl',
'_ZN6impala15StringFunctions15ParseUrlPrepareEPN10impala_udf15FunctionContextENS2_18FunctionStateScopeE',
'_ZN6impala15StringFunctions13ParseUrlCloseEPN10impala_udf15FunctionContextENS2_18FunctionStateScopeE'],
[['parse_url'], 'STRING', ['STRING', 'STRING', 'STRING'], 'impala::StringFunctions::ParseUrlKey',
'_ZN6impala15StringFunctions15ParseUrlPrepareEPN10impala_udf15FunctionContextENS2_18FunctionStateScopeE',
'_ZN6impala15StringFunctions13ParseUrlCloseEPN10impala_udf15FunctionContextENS2_18FunctionStateScopeE'],
]
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