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feat(mysql): support ZEROFILL column attribute #6400

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Merged
georgesittas merged 1 commit into from
Nov 25, 2025
Merged

feat(mysql): support ZEROFILL column attribute #6400

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1 change: 1 addition & 0 deletions sqlglot/dialects/mysql.py
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Original file line number Diff line number Diff line change
Expand Up @@ -464,6 +464,7 @@ class Parser(parser.Parser):
"INDEX": lambda self: self._parse_index_constraint(),
"KEY": lambda self: self._parse_index_constraint(),
"SPATIAL": lambda self: self._parse_index_constraint(kind="SPATIAL"),
"ZEROFILL": lambda self: self.expression(exp.ZeroFillColumnConstraint),
}

ALTER_PARSERS = {
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4 changes: 4 additions & 0 deletions sqlglot/expressions.py
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Expand Up @@ -1972,6 +1972,10 @@ class AutoIncrementColumnConstraint(ColumnConstraintKind):
pass


class ZeroFillColumnConstraint(ColumnConstraint):
arg_types = {}


class PeriodForSystemTimeConstraint(ColumnConstraintKind):
arg_types = {"this": True, "expression": True}

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3 changes: 3 additions & 0 deletions sqlglot/generator.py
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Expand Up @@ -5434,3 +5434,6 @@ def initcap_sql(self, expression: exp.Initcap) -> str:
delimiters = None

return self.func("INITCAP", expression.this, delimiters)

def zerofillcolumnconstraint_sql(self, expression: exp.ZeroFillColumnConstraint) -> str:
return "ZEROFILL"
1 change: 1 addition & 0 deletions tests/dialects/test_mysql.py
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Expand Up @@ -26,6 +26,7 @@ def test_ddl(self):
self.validate_identity("CREATE TABLE foo (a BIGINT, INDEX USING BTREE (b))")
self.validate_identity("CREATE TABLE foo (a BIGINT, FULLTEXT INDEX (b))")
self.validate_identity("CREATE TABLE foo (a BIGINT, SPATIAL INDEX (b))")
self.validate_identity("CREATE TABLE foo (a INT UNSIGNED ZEROFILL)")
self.validate_identity("ALTER TABLE t1 ADD COLUMN x INT, ALGORITHM=INPLACE, LOCK=EXCLUSIVE")
self.validate_identity("ALTER TABLE t ADD INDEX `i` (`c`)")
self.validate_identity("ALTER TABLE t ADD UNIQUE `i` (`c`)")
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