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fix: use random table for read_pandas #192

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Merged
merged 5 commits into from
Nov 10, 2023
Merged

fix: use random table for read_pandas #192

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a436194
fix: use random table for read_pandas
ashleyxuu Nov 10, 2023
03606cd
fix: default to 7 days expiration for `read_csv`, `read_json`, `read_…
tswast Nov 10, 2023
96b8b1d
fix: use random table for read_pandas
ashleyxuu Nov 10, 2023
2d72596
fix: use the real table expression
ashleyxuu Nov 10, 2023
6915c54
Merge remote-tracking branch 'origin/read_pandas-random-table' into r…
ashleyxuu Nov 10, 2023
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2 changes: 1 addition & 1 deletion bigframes/core/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -165,7 +165,7 @@ def cached(self, cluster_cols: typing.Sequence[str]) -> ArrayValue:
ibis_expr = compiled_value._to_ibis_expr(
ordering_mode="unordered", expose_hidden_cols=True
)
tmp_table = self.session._ibis_to_session_table(
tmp_table = self.session._ibis_to_temp_table(
ibis_expr, cluster_cols=cluster_cols, api_name="cached"
)

Expand Down
14 changes: 3 additions & 11 deletions bigframes/session/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -36,7 +36,6 @@
Tuple,
Union,
)
import uuid
import warnings

import google.api_core.client_info
Expand Down Expand Up @@ -977,7 +976,7 @@ def _read_pandas(
job_config.clustering_fields = cluster_cols
job_config.labels = {"bigframes-api": api_name}

load_table_destination = self._create_session_table()
load_table_destination = bigframes_io.random_table(self._anonymous_dataset)
load_job = self.bqclient.load_table_from_dataframe(
pandas_dataframe_copy,
load_table_destination,
Expand Down Expand Up @@ -1269,13 +1268,6 @@ def _check_file_size(self, filepath: str):
"for large files to avoid loading the file into local memory."
)

def _create_session_table(self) -> bigquery.TableReference:
table_name = f"{uuid.uuid4().hex}"
dataset = bigquery.Dataset(
bigquery.DatasetReference(self.bqclient.project, "_SESSION")
)
return dataset.table(table_name)

def _create_empty_temp_table(
self,
schema: Iterable[bigquery.SchemaField],
Expand Down Expand Up @@ -1310,7 +1302,7 @@ def _create_sequential_ordering(
ibis.row_number().cast(ibis_dtypes.int64).name(default_ordering_name)
)
table = table.mutate(**{default_ordering_name: default_ordering_col})
table_ref = self._ibis_to_session_table(
table_ref = self._ibis_to_temp_table(
table,
cluster_cols=list(index_cols) + [default_ordering_name],
api_name=api_name,
Expand All @@ -1326,7 +1318,7 @@ def _create_sequential_ordering(
)
return table, ordering

def _ibis_to_session_table(
def _ibis_to_temp_table(
self,
table: ibis_types.Table,
cluster_cols: Iterable[str],
Expand Down