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[18.x] Fix schemacopy collation issues #15859

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merged 3 commits into from
May 8, 2024
Merged

[18.x] Fix schemacopy collation issues #15859

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cfb8e60
Fix collation issues with `schemacopy` table.
arthurschreiber May 7, 2024
b0640fa
Explicitly specify the character set.
arthurschreiber May 7, 2024
c875fac
Try being explicit about table charset.
arthurschreiber May 8, 2024
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4 changes: 2 additions & 2 deletions go/mysql/schema.go
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Original file line number Diff line number Diff line change
Expand Up @@ -39,13 +39,13 @@ const (
DetectSchemaChange = `
SELECT DISTINCT table_name
FROM (
SELECT table_name, column_name, ordinal_position, character_set_name, collation_name, data_type, column_key
SELECT table_name COLLATE utf8mb3_bin AS table_name, column_name COLLATE utf8mb3_general_ci AS column_name, ordinal_position, character_set_name COLLATE utf8mb3_general_ci AS character_set_name, collation_name COLLATE utf8mb3_general_ci AS collation_name, data_type COLLATE utf8mb3_bin AS data_type, column_key COLLATE utf8mb3_bin AS column_key
FROM information_schema.columns
WHERE table_schema = database()

UNION ALL

SELECT table_name, column_name, ordinal_position, character_set_name, collation_name, data_type, column_key
SELECT table_name COLLATE utf8mb3_bin AS table_name, column_name COLLATE utf8mb3_general_ci AS column_name, ordinal_position, character_set_name COLLATE utf8mb3_general_ci AS character_set_name, collation_name COLLATE utf8mb3_general_ci AS collation_name, data_type COLLATE utf8mb3_bin AS data_type, column_key COLLATE utf8mb3_bin AS column_key
FROM %s.schemacopy
WHERE table_schema = database()
) _inner
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18 changes: 9 additions & 9 deletions go/vt/sidecardb/schema/schematracker/schemacopy.sql
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Expand Up @@ -16,13 +16,13 @@ limitations under the License.

CREATE TABLE IF NOT EXISTS schemacopy
(
`table_schema` varchar(64) NOT NULL,
`table_name` varchar(64) NOT NULL,
`column_name` varchar(64) NOT NULL,
`ordinal_position` bigint unsigned NOT NULL,
`character_set_name` varchar(32) DEFAULT NULL,
`collation_name` varchar(32) DEFAULT NULL,
`data_type` varchar(64) NOT NULL,
`column_key` varchar(3) NOT NULL,
`table_schema` varchar(64) CHARACTER SET utf8mb3 COLLATE utf8mb3_bin NOT NULL,
`table_name` varchar(64) CHARACTER SET utf8mb3 COLLATE utf8mb3_bin NOT NULL,
`column_name` varchar(64) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci NOT NULL,
`ordinal_position` bigint unsigned NOT NULL,
`character_set_name` varchar(32) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci DEFAULT NULL,
`collation_name` varchar(32) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci DEFAULT NULL,
`data_type` varchar(64) CHARACTER SET utf8mb3 COLLATE utf8mb3_bin NOT NULL,
`column_key` varchar(3) CHARACTER SET utf8mb3 COLLATE utf8mb3_bin NOT NULL,
PRIMARY KEY (`table_schema`, `table_name`, `ordinal_position`)
) ENGINE = InnoDB
) ENGINE = InnoDB, CHARACTER SET = utf8mb3
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