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[WIP] Alembic support #11 #20

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[WIP] Alembic support #11 #20

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21 changes: 19 additions & 2 deletions ydb_sqlalchemy/sqlalchemy/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -212,8 +212,25 @@ def visit_not_regexp_match_op_binary(self, binary, operator, **kw):


class YqlDDLCompiler(DDLCompiler):
pass

def visit_foreign_key_constraint(self, constraint):
return None

def visit_primary_key_constraint(self, constraint, **kwargs):
if len(constraint) == 0:
return ""
text = ""
text += "PRIMARY KEY "
text += "(%s)" % ", ".join(
self.preparer.quote(c.name)
for c in (
constraint.columns_autoinc_first
if constraint._implicit_generated
else constraint.columns
)
)
text += self.define_constraint_deferrability(constraint)
return text


def upsert(table):
return sa.sql.Insert(table)
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