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4703638775
Type_handler::partition_field_append_value() erroneously
passed the address of my_collation_contextually_typed_binary
to conversion functions copy_and_convert() and my_convert().
This happened because generate_partition_syntax_for_frm()
was called from mysql_create_frm_image() in the stage when
the fields in List<Create_field> can still contain unresolved
contextual collations, like "binary" in the reported crash scenario:
ALTER TABLE t CHANGE COLUMN a a CHAR BINARY;
Fix:
1. Splitting mysql_prepare_create_table() into two parts:
- mysql_prepare_create_table_stage1() interates through
List<Create_field> and calls Create_field::prepare_stage1(),
which performs basic attribute initialization, including
context collation resolution.
- mysql_prepare_create_table_finalize() - the rest of the
old mysql_prepare_create_table() code.
2. Changing mysql_create_frm_image():
It now calls:
- mysql_prepare_create_table_stage1() in the very
beginning, before the partition related code.
- mysql_prepare_create_table_finalize() in the end,
instead of the old mysql_prepare_create_table() call
3. Adding mysql_prepare_create_table() as a wrapper
for two calls:
mysql_prepare_create_table_stage1() ||
mysql_prepare_create_table_finalize()
so the code stays unchanged in the other places
where mysql_prepare_create_table() was used.
4. Changing prototype for Type_handler::Column_definition_prepare_stage1()
Removing arguments:
- handler *file
- ulonglong table_flags
Adding a new argument instead:
- column_definition_type_t type
This allows to call Column_definition_prepare_stage1() and
therefore to call mysql_prepare_create_table_stage1()
before instantiation of a handler.
This simplifies the code, because in case of a partitioned table,
mysql_create_frm_image() creates a handler of the underlying
partition first, the frees it and created a ha_partition
instance instead.
mysql_prepare_create_table() before the fix was called with the final
(ha_partition) handler.
5. Moving parts of Column_definition_prepare_stage1() which
need a pointer to handler and table_flags to
Column_definition_prepare_stage2().
88 lines
3.4 KiB
Text
88 lines
3.4 KiB
Text
#
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# Start of 10.5 tests
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#
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#
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# MDEV-20856 Bad values in metadata views for partitions on VARBINARY
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#
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SET NAMES utf8;
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SET @save_dbug = @@debug_dbug;
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SET SESSION debug_dbug="+d,generate_partition_syntax_for_frm";
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CREATE OR REPLACE TABLE t1 (a VARCHAR(10)) CHARACTER SET latin1
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PARTITION BY LIST COLUMNS (a) (PARTITION p0 VALUES IN (_utf8'Ṡ'));
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ERROR HY000: This partition function is not allowed
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CREATE OR REPLACE TABLE t1 (a VARCHAR(10)) CHARACTER SET latin1
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PARTITION BY LIST COLUMNS (a) (PARTITION p0 VALUES IN ('Ṡ'));
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ERROR HY000: This partition function is not allowed
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CREATE OR REPLACE TABLE t1 (a VARCHAR(10)) CHARACTER SET latin1
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PARTITION BY LIST COLUMNS (a) (PARTITION p0 VALUES IN (_latin1 0xDF));
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Warnings:
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Note 1003 PARTITION BY LIST COLUMNS(`a`)
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(PARTITION `p0` VALUES IN (_latin1 0xdf) ENGINE = MyISAM)
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SELECT PARTITION_DESCRIPTION FROM INFORMATION_SCHEMA.PARTITIONS WHERE TABLE_NAME='t1';
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PARTITION_DESCRIPTION
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'ß'
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DROP TABLE t1;
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CREATE OR REPLACE TABLE t1 (a VARCHAR(10)) CHARACTER SET latin1
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PARTITION BY LIST COLUMNS (a) (PARTITION p0 VALUES IN (_utf8'ß'));
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Warnings:
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Note 1003 PARTITION BY LIST COLUMNS(`a`)
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(PARTITION `p0` VALUES IN (_latin1 0xdf) ENGINE = MyISAM)
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SELECT PARTITION_DESCRIPTION FROM INFORMATION_SCHEMA.PARTITIONS WHERE TABLE_NAME='t1';
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PARTITION_DESCRIPTION
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'ß'
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DROP TABLE t1;
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CREATE OR REPLACE TABLE t1 (a VARCHAR(10)) CHARACTER SET latin1
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PARTITION BY LIST COLUMNS (a) (PARTITION p0 VALUES IN ('ß'));
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Warnings:
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Note 1003 PARTITION BY LIST COLUMNS(`a`)
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(PARTITION `p0` VALUES IN (_latin1 0xdf) ENGINE = MyISAM)
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DROP TABLE t1;
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CREATE OR REPLACE TABLE t1 (a VARCHAR(10)) CHARACTER SET utf8
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PARTITION BY LIST COLUMNS (a) (PARTITION p0 VALUES IN (_utf8'ß'));
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Warnings:
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Note 1003 PARTITION BY LIST COLUMNS(`a`)
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(PARTITION `p0` VALUES IN (_utf8mb3 0xc39f) ENGINE = MyISAM)
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SELECT PARTITION_DESCRIPTION FROM INFORMATION_SCHEMA.PARTITIONS WHERE TABLE_NAME='t1';
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PARTITION_DESCRIPTION
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'ß'
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DROP TABLE t1;
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CREATE OR REPLACE TABLE t1 (a VARCHAR(10)) CHARACTER SET utf8
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PARTITION BY LIST COLUMNS (a) (PARTITION p0 VALUES IN ('ß'));
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Warnings:
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Note 1003 PARTITION BY LIST COLUMNS(`a`)
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(PARTITION `p0` VALUES IN (_utf8mb3 0xc39f) ENGINE = MyISAM)
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SELECT PARTITION_DESCRIPTION FROM INFORMATION_SCHEMA.PARTITIONS WHERE TABLE_NAME='t1';
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PARTITION_DESCRIPTION
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'ß'
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DROP TABLE t1;
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CREATE OR REPLACE TABLE t1 (a VARBINARY(10)) CHARACTER SET utf8
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PARTITION BY LIST COLUMNS (a) (PARTITION p0 VALUES IN (0xFF));
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Warnings:
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Note 1003 PARTITION BY LIST COLUMNS(`a`)
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(PARTITION `p0` VALUES IN (_binary 0xff) ENGINE = MyISAM)
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SELECT PARTITION_DESCRIPTION FROM INFORMATION_SCHEMA.PARTITIONS WHERE TABLE_NAME='t1';
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PARTITION_DESCRIPTION
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_binary 0xff
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DROP TABLE t1;
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CREATE OR REPLACE TABLE t1 (a DATE) CHARACTER SET utf8
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PARTITION BY LIST COLUMNS (a) (PARTITION p0 VALUES IN (FROM_DAYS(NULL)));
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Warnings:
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Note 1003 PARTITION BY LIST COLUMNS(`a`)
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(PARTITION `p0` VALUES IN (NULL) ENGINE = MyISAM)
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SELECT PARTITION_DESCRIPTION FROM INFORMATION_SCHEMA.PARTITIONS WHERE TABLE_NAME='t1';
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PARTITION_DESCRIPTION
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NULL
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DROP TABLE t1;
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CREATE OR REPLACE TABLE t1 (a DATE) CHARACTER SET utf8
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PARTITION BY LIST COLUMNS (a) (PARTITION p0 VALUES IN (FROM_DAYS(100)));
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Warnings:
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Note 1003 PARTITION BY LIST COLUMNS(`a`)
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(PARTITION `p0` VALUES IN (_latin1 0x303030302d30302d3030) ENGINE = MyISAM)
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SELECT PARTITION_DESCRIPTION FROM INFORMATION_SCHEMA.PARTITIONS WHERE TABLE_NAME='t1';
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PARTITION_DESCRIPTION
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'0000-00-00'
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DROP TABLE t1;
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SET debug_dbug=@save_dbug;
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#
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# End of 10.5 tests
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#
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