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Add table prefix pragma to queries #4

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Merged
vgvoleg merged 1 commit into from
Nov 1, 2024
Merged

Add table prefix pragma to queries #4

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14 changes: 14 additions & 0 deletions ydb_dbapi/cursors.py
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,8 @@ def __init__(self) -> None:
self._description: list[tuple] | None = None
self._state: CursorStatus = CursorStatus.ready

self._table_path_prefix: str = ""

@property
def description(self) -> list[tuple] | None:
return self._description
Expand Down Expand Up @@ -134,6 +136,12 @@ def _fetchall_from_buffer(self) -> list:
self._raise_if_closed()
return list(self._rows or iter([]))

def _append_table_path_prefix(self, query: str) -> str:
if self._table_path_prefix:
prgm = f'PRAGMA TablePathPrefix = "{self._table_path_prefix}";\n'
return prgm + query
return query


class Cursor(BufferedCursor):
def __init__(
Expand Down Expand Up @@ -225,6 +233,9 @@ def execute(
) -> None:
self._raise_if_closed()
self._raise_if_running()

query = self._append_table_path_prefix(query)

if self._tx_context is not None:
self._stream = self._execute_transactional_query(
tx_context=self._tx_context, query=query, parameters=parameters
Expand Down Expand Up @@ -376,6 +387,9 @@ async def execute(
) -> None:
self._raise_if_closed()
self._raise_if_running()

query = self._append_table_path_prefix(query)

if self._tx_context is not None:
self._stream = await self._execute_transactional_query(
tx_context=self._tx_context, query=query, parameters=parameters
Expand Down
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