mariadb/mysql-test/suite/sysschema/t/pr_table_exists.test

-- source include/not_embedded.inc


# Create a base table and a view
CREATE TABLE t1 (id INT PRIMARY KEY);
# Verify the base table and view is supported
CALL sys.table_exists('test', 't1', @exists);
SELECT @exists;
DROP TABLE t1;

CREATE view v_t1 AS SELECT 1;
CALL sys.table_exists('test', 'v_t1', @exists);
SELECT @exists;
DROP VIEW v_t1;

CREATE TABLE tv (i int) with system versioning;
CALL sys.table_exists('test','tv',@exists);
SELECT @exists;
DROP TABLE tv;

CREATE SEQUENCE s;
CALL sys.table_exists('test','s',@exists);
SELECT @exists;
DROP SEQUENCE s;

# Replace the base table with a temporary table
CREATE TEMPORARY TABLE t1 (id INT PRIMARY KEY);
CALL sys.table_exists('test', 't1', @exists);
SELECT @exists;
DROP TEMPORARY TABLE t1;

CALL sys.table_exists('information_schema', 'all_plugins', @exists);
SELECT @exists;

# Try a non-existing table
CALL sys.table_exists('test', 't2', @exists);
SELECT @exists;

# Try variables longer than expected
SET @identifier := REPEAT('a', 65);

-- error 1406
CALL sys.table_exists(@identifier, 't1', @exists);

-- error 1406
CALL sys.table_exists('test', @identifier, @exists);

SET @identifier := NULL;

--echo #
--echo # MDEV-28391: table_exists procedure fails with
--echo #             Incorrect table name with backtick identifiers
--echo #
CREATE TABLE `ab``c` (t1_id int PRIMARY KEY, t1_val varchar(10));
CALL sys.table_exists('test', 'ab`c', @tbl_type);
SELECT @tbl_type;
DROP TABLE `ab``c`;
CREATE TEMPORARY TABLE `ab``c` (t1_id int PRIMARY KEY, t1_val varchar(10));
CALL sys.table_exists('test', 'ab`c', @tbl_type);
SELECT @tbl_type;
DROP TABLE `ab``c`;
CREATE TABLE `ab``c` (t1_id int PRIMARY KEY, t1_val varchar(10));
CREATE TEMPORARY TABLE `ab``c` (t1_id int PRIMARY KEY, t1_val varchar(10));
CALL sys.table_exists('test', 'ab`c', @tbl_type);
SELECT @tbl_type;
--echo # We cannot send quoted identifer to the procedure, no table will be found
CALL sys.table_exists('test', '`ab``c`', @tbl_type);
SELECT @tbl_type;
--echo # Remove temporary table
DROP TABLE `ab``c`;
CALL sys.table_exists('test', 'ab`c', @tbl_type);
SELECT @tbl_type;
--echo # Remove base table
DROP TABLE `ab``c`;
--echo # MDEV-12459: The information_schema tables for getting temporary tables
--echo #             info is missing, at least for innodb, there is no
--echo #             INNODB_TEMP_TABLE_INFO
--echo #

# Temporary table will shadow the base table without warning
CREATE TABLE t1 (id INT PRIMARY KEY);
# Verify the base table and view is supported
CALL sys.table_exists('test', 't1', @exists);
SELECT @exists;
CREATE TEMPORARY TABLE t1 (id INT PRIMARY KEY);
CALL sys.table_exists('test', 't1', @exists);
SELECT @exists;

DROP TEMPORARY TABLE t1;
DROP TABLE t1;

--echo #
--echo # MDEV-28335: TABLE_TYPE for temporary sequences
--echo #             is the same as for permanent ones
--echo #

CREATE TEMPORARY SEQUENCE s1;
CALL sys.table_exists('test', 's1', @exists);
# If there is no shadowing with temporary table, result is table type
SELECT @exists;
DROP SEQUENCE s1;
CREATE SEQUENCE s;
CALL sys.table_exists('test', 's', @exists); SELECT @exists;
# Creating temporary sequence over sequence results in `temporary`
CREATE TEMPORARY SEQUENCE s;
CALL sys.table_exists('test', 's', @exists); SELECT @exists;
# First drop temporary sequence
DROP SEQUENCE s;
CALL sys.table_exists('test', 's', @exists); SELECT @exists;
DROP SEQUENCE s;
CALL sys.table_exists('test', 's', @exists); SELECT @exists;

CREATE TEMPORARY SEQUENCE t1;
CALL sys.table_exists('test', 't1', @exists);
SELECT @exists;
CREATE TABLE t1 (id INT PRIMARY KEY);
CALL sys.table_exists('test', 't1', @exists);
# Before was a `temporary sequence`, now should be `temporary`
SELECT @exists;
# It is not possible to create temporary table over temporary sequence with the same name
--error ER_TABLE_EXISTS_ERROR
CREATE TEMPORARY TABLE t1 (id INT PRIMARY KEY);
# It is not possible to create sequence over temporary sequence with the same name
--error ER_TABLE_EXISTS_ERROR
CREATE SEQUENCE t1;
# This will drop temporary sequence
DROP SEQUENCE t1;
CALL sys.table_exists('test', 't1', @exists);
# This will lead to `base table`
SELECT @exists;
# It is not possible to create a sequence over the base table
--error ER_TABLE_EXISTS_ERROR
CREATE SEQUENCE t1;
# Let's test with temporary sequence instead
CREATE TEMPORARY SEQUENCE t1;
CALL sys.table_exists('test', 't1', @exists);
# Will return temporary as expected
SELECT @exists;
# Again droping the temporary sequence
DROP SEQUENCE t1;
# Will lead to the base table
CALL sys.table_exists('test', 't1', @exists);
SELECT @exists;
CREATE TEMPORARY TABLE t1 (id INT PRIMARY KEY);
# This will return `temporary`
CALL sys.table_exists('test', 't1', @exists);
SELECT @exists;
# We cannot create temporary sequence over temporary table
--error ER_TABLE_EXISTS_ERROR
CREATE TEMPORARY SEQUENCE t1;
--error ER_TABLE_EXISTS_ERROR
CREATE SEQUENCE t1;
DROP TEMPORARY TABLE t1;
# Drop base table
DROP TABLE t1;
CREATE SEQUENCE t1;
CALL sys.table_exists('test', 't1', @exists);
# Should be a sequence
SELECT @exists;
# Create an temporary table
CREATE TEMPORARY TABLE t1(t int);
CALL sys.table_exists('test', 't1', @exists);
# Should shadow an sequence with temporary
SELECT @exists;
# Drop temporary table
DROP TABLE t1;
CALL sys.table_exists('test', 't1', @exists);
# Should again show the sequence
SELECT @exists;
CREATE TEMPORARY SEQUENCE t1;
CALL sys.table_exists('test', 't1', @exists);
# Should shadow an sequence with temporary
SELECT @exists;
# Drop temporary sequence
DROP TABLE t1;
# Drop an sequence
DROP TABLE t1;