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acca24fe02
This change updates the way column names are
projected in the SQL query generated for JDBC
external tables. Instead of relying on optional
mapping or default behavior, all column names are now
explicitly quoted using appropriate quote characters.
Column names are now wrapped with quote characters
based on the JDBC driver being used:
1. Backticks (`) for Hive, Impala and MySQL
2. Double quotes (") for all other databases
This helps in the support for case-sensitive or
reserved column names.
Change-Id: I5da5bc7ea5df8f094b7e2877a0ebf35662f93805
Reviewed-on: http://gerrit.cloudera.org:8080/23066
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
Reviewed-by: Wenzhe Zhou <wzhou@cloudera.com>
151 lines
4.6 KiB
SQL
151 lines
4.6 KiB
SQL
--
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-- Licensed to the Apache Software Foundation (ASF) under one
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-- or more contributor license agreements. See the NOTICE file
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-- distributed with this work for additional information
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-- regarding copyright ownership. The ASF licenses this file
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-- to you under the Apache License, Version 2.0 (the
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-- "License"); you may not use this file except in compliance
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-- with the License. You may obtain a copy of the License at
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--
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-- http://www.apache.org/licenses/LICENSE-2.0
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--
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-- Unless required by applicable law or agreed to in writing,
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-- software distributed under the License is distributed on an
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-- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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-- KIND, either express or implied. See the License for the
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-- specific language governing permissions and limitations
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-- under the License.
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-- Create test data sources and tables
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USE functional;
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DROP DATA SOURCE IF EXISTS AllTypesDataSource;
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CREATE DATA SOURCE AllTypesDataSource
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LOCATION '/test-warehouse/data-sources/test-data-source.jar'
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CLASS 'org.apache.impala.extdatasource.AllTypesDataSource'
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API_VERSION 'V1';
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DROP TABLE IF EXISTS alltypes_datasource;
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CREATE TABLE alltypes_datasource (
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id INT,
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bool_col BOOLEAN,
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tinyint_col TINYINT,
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smallint_col SMALLINT,
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int_col INT,
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bigint_col BIGINT,
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float_col FLOAT,
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double_col DOUBLE,
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timestamp_col TIMESTAMP,
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string_col STRING,
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dec_col1 DECIMAL(9,0),
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dec_col2 DECIMAL(10,0),
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dec_col3 DECIMAL(20,10),
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dec_col4 DECIMAL(38,37),
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dec_col5 DECIMAL(10,5),
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date_col DATE)
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PRODUCED BY DATA SOURCE AllTypesDataSource("TestInitString");
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DROP TABLE IF EXISTS alltypes_jdbc_datasource;
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CREATE EXTERNAL TABLE alltypes_jdbc_datasource (
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id INT,
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bool_col BOOLEAN,
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tinyint_col TINYINT,
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smallint_col SMALLINT,
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int_col INT,
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bigint_col BIGINT,
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float_col FLOAT,
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double_col DOUBLE,
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date_col DATE,
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string_col STRING,
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timestamp_col TIMESTAMP)
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STORED BY JDBC
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TBLPROPERTIES (
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"database.type"="POSTGRES",
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"jdbc.url"="jdbc:postgresql://localhost:5432/functional",
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"jdbc.driver"="org.postgresql.Driver",
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"driver.url"="/test-warehouse/data-sources/jdbc-drivers/postgresql-jdbc.jar",
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"dbcp.username"="hiveuser",
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"dbcp.password"="password",
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"table"="alltypes");
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DROP TABLE IF EXISTS alltypes_jdbc_datasource_2;
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CREATE EXTERNAL TABLE alltypes_jdbc_datasource_2 (
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id INT,
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bool_col BOOLEAN,
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tinyint_col TINYINT,
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smallint_col SMALLINT,
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int_col INT,
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bigint_col BIGINT,
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float_col FLOAT,
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double_col DOUBLE,
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date_col DATE,
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string_col STRING,
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timestamp_col TIMESTAMP)
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STORED BY JDBC
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TBLPROPERTIES (
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"database.type"="POSTGRES",
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"jdbc.url"="jdbc:postgresql://localhost:5432/functional",
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"jdbc.driver"="org.postgresql.Driver",
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"driver.url"="hdfs://localhost:20500/test-warehouse/data-sources/jdbc-drivers/postgresql-jdbc.jar",
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"dbcp.username"="hiveuser",
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"dbcp.password"="password",
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"table"="AllTypesWithQuote",
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"column.mapping"="id=id, bool_col=Bool_col, tinyint_col=Tinyint_col, smallint_col=Smallint_col, int_col=Int_col, bigint_col=Bigint_col, float_col=Float_col, double_col=Double_col, date_string_col=Date_string_col, string_col=String_col, timestamp=Timestamp");
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DROP TABLE IF EXISTS jdbc_decimal_tbl;
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CREATE EXTERNAL TABLE jdbc_decimal_tbl (
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d1 DECIMAL(9,0),
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d2 DECIMAL(10,0),
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d3 DECIMAL(20,10),
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d4 DECIMAL(38,38),
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d5 DECIMAL(10,5))
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STORED BY JDBC
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TBLPROPERTIES (
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"database.type"="POSTGRES",
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"jdbc.url"="jdbc:postgresql://localhost:5432/functional",
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"jdbc.driver"="org.postgresql.Driver",
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"driver.url"="hdfs://localhost:20500/test-warehouse/data-sources/jdbc-drivers/postgresql-jdbc.jar",
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"dbcp.username"="hiveuser",
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"dbcp.password"="password",
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"table"="decimal_tbl");
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DROP TABLE IF EXISTS test_strategy;
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CREATE EXTERNAL TABLE IF NOT EXISTS test_strategy (
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strategy_id INT,
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name STRING,
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referrer STRING,
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landing STRING,
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priority INT,
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implementation STRING,
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last_modified timestamp,
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PRIMARY KEY (strategy_id) )
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STORED BY JDBC
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TBLPROPERTIES (
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"database.type"="POSTGRES",
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"jdbc.url"="jdbc:postgresql://localhost:5432/functional",
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"jdbc.driver"="org.postgresql.Driver",
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"driver.url"="/test-warehouse/data-sources/jdbc-drivers/postgresql-jdbc.jar",
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"dbcp.username"="hiveuser",
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"dbcp.password"="password",
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"table"="test_strategy");
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DROP TABLE IF EXISTS quoted_impala;
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CREATE EXTERNAL TABLE IF NOT EXISTS quoted_impala (
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strategy_id INT,
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name STRING,
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referrer STRING,
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landing STRING,
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priority INT,
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`freeze` STRING,
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last_modified timestamp,
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PRIMARY KEY (strategy_id) )
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STORED BY JDBC
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TBLPROPERTIES (
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"database.type"="POSTGRES",
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"jdbc.url"="jdbc:postgresql://localhost:5432/functional",
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"jdbc.driver"="org.postgresql.Driver",
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"driver.url"="/test-warehouse/data-sources/jdbc-drivers/postgresql-jdbc.jar",
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"dbcp.username"="hiveuser",
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"dbcp.password"="password",
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"table"="test_strategy"); |