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Commit 53bda62

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asthamohtaasthamohta
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fix: fix to reload table when checking if table exists (#1002)
* fix: fix to reload table * changes * lint
1 parent 5d91a28 commit 53bda62

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‎google/cloud/spanner_v1/table.py‎

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@@ -77,6 +77,11 @@ def _exists(self, snapshot):
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:rtype: bool
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:returns: True if the table exists, else false.
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"""
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if (
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self._database.database_dialect
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== DatabaseDialect.DATABASE_DIALECT_UNSPECIFIED
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):
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self._database.reload()
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if self._database.database_dialect == DatabaseDialect.POSTGRESQL:
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results = snapshot.execute_sql(
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_EXISTS_TEMPLATE.format("WHERE TABLE_NAME = $1"),

‎tests/system/test_table_api.py‎

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@@ -29,6 +29,16 @@ def test_table_exists_not_found(shared_database):
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assert not table.exists()
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def test_table_exists_reload_database_dialect(
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shared_instance, shared_database, not_emulator
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):
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database = shared_instance.database(shared_database.database_id)
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assert database.database_dialect == DatabaseDialect.DATABASE_DIALECT_UNSPECIFIED
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table = database.table("all_types")
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assert table.exists()
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assert database.database_dialect != DatabaseDialect.DATABASE_DIALECT_UNSPECIFIED
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def test_db_list_tables(shared_database):
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tables = shared_database.list_tables()
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table_ids = set(table.table_id for table in tables)

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