tidb-server v5.0.6

Bug fixes

• Fix the panic that might occur when DML and DDL statements are executed concurrently #30940
• Fix the TiDB panic when executing the ALTER TABLE.. ADD INDEX statement in some cases #27687
• Fix the issue that the enforce-mpp configuration does not take effect in v5.0.4 #29252
• Fix the TiDB panic when inserting invalid date values concurrently #25393
• Fix the unexpected can not found column in Schema column error for queries in the MPP mode #30980
• Fix the unexpected index out of range error when the planner is doing join reorder #24095
• Fix the wrong result of CONCAT(IFNULL(TIME(3)) #29498
• Fix wrong results of GREATEST and LEAST when passing in unsigned BIGINT arguments #30101
• Fix the issue that a SQL operation is canceled when its JSON type column joins its CHAR type column #29401
• Fix the data inconsistency issue caused by incorrect usage of lazy existence check and untouched key optimization #30410
• Fix the issue that window functions might return different results when using a transaction or not #29947
• Fix the issue that the SQL statements that contain cast(integer as char) union string return wrong results #29513
• Fix the issue that the Column 'col_name' in field list is ambiguous error is reported unexpectedly when a SQL statement contains natural join #25041
• Fix the issue that the index out of range [1] with length 1 error is reported when a SQL statement evaluates an aggregation result on the result of join in some cases #1978