File: fn_list_drop.test

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# Tests for sys schema
# Verify the sys.sql_mode_drop() function perfoms as expected

# Remove from front of list
SELECT sys.list_drop('1,2,3,4,5', '1');

# Remove from middle of list
SELECT sys.list_drop('1,2,3,4,5', '3');

# Remove from end of list
SELECT sys.list_drop('1,2,3,4,5', '5');

# Make sure spaces are appropriately dealt with
SELECT sys.list_drop('1, 2, 3, 4, 5', '1');
SELECT sys.list_drop('1, 2, 3, 4, 5', '3');
SELECT sys.list_drop('1, 2, 3, 4, 5', '5');

# Should return an error with a NULL value to drop
--error 1138
SELECT sys.list_drop('1,2,3,4,5', NULL);

# Test the sql mode update use case
# save old mode to restore
SET @sqlmode := @@sql_mode;

SELECT @@sql_mode;

SET SESSION sql_mode = sys.list_drop(@@sql_mode, 'STRICT_TRANS_TABLES');

SELECT @@sql_mode;

# restore old mode
SET SESSION sql_mode = @sqlmode;
SET @sqlmode := NULL;