An option to control the selection of optimizer statistics package.
This parameter allows individual queries to use a different query
optimizer statistics package.
Specifying latest as a value instructs Cloud Spanner to use the latest
generated statistics package. If not specified, Cloud Spanner uses
the statistics package set at the database level options, or the latest
package if the database option is not set.
The statistics package requested by the query has to be exempt from
garbage collection. This can be achieved with the following DDL
statement:
<code><code>
ALTER STATISTICS <package_name> SET OPTIONS (allow_gc=false)
</code></code><code>
The list of available statistics packages can be queried from
</code>INFORMATION_SCHEMA.SPANNER_STATISTICS<code>.
Executing a SQL statement with an invalid optimizer statistics package
or with a statistics package that allows garbage collection fails with
an </code>INVALID_ARGUMENT error.
An option to control the selection of optimizer version.
This parameter allows individual queries to pick different query
optimizer versions.
Specifying latest as a value instructs Cloud Spanner to use the
latest supported query optimizer version. If not specified, Cloud Spanner
uses the optimizer version set at the database level options. Any other
positive integer (from the list of supported optimizer versions)
overrides the default optimizer version for query execution.
The list of supported optimizer versions can be queried from
SPANNER_SYS.SUPPORTED_OPTIMIZER_VERSIONS.
Executing a SQL statement with an invalid optimizer version fails with
an INVALID_ARGUMENT error.
See
https://cloud.google.com/spanner/docs/query-optimizer/manage-query-optimizer
for more information on managing the query optimizer.
The optimizer_version statement hint has precedence over this setting.
An option to control the selection of optimizer statistics package.
This parameter allows individual queries to use a different query
optimizer statistics package.
Specifying latest as a value instructs Cloud Spanner to use the latest
generated statistics package. If not specified, Cloud Spanner uses
the statistics package set at the database level options, or the latest
package if the database option is not set.
The statistics package requested by the query has to be exempt from
garbage collection. This can be achieved with the following DDL
statement:
<code><code>
ALTER STATISTICS <package_name> SET OPTIONS (allow_gc=false)
</code></code><code>
The list of available statistics packages can be queried from
</code>INFORMATION_SCHEMA.SPANNER_STATISTICS<code>.
Executing a SQL statement with an invalid optimizer statistics package
or with a statistics package that allows garbage collection fails with
an </code>INVALID_ARGUMENT error.
An option to control the selection of optimizer statistics package.
This parameter allows individual queries to use a different query
optimizer statistics package.
Specifying latest as a value instructs Cloud Spanner to use the latest
generated statistics package. If not specified, Cloud Spanner uses
the statistics package set at the database level options, or the latest
package if the database option is not set.
The statistics package requested by the query has to be exempt from
garbage collection. This can be achieved with the following DDL
statement:
<code><code>
ALTER STATISTICS <package_name> SET OPTIONS (allow_gc=false)
</code></code><code>
The list of available statistics packages can be queried from
</code>INFORMATION_SCHEMA.SPANNER_STATISTICS<code>.
Executing a SQL statement with an invalid optimizer statistics package
or with a statistics package that allows garbage collection fails with
an </code>INVALID_ARGUMENT error.
An option to control the selection of optimizer version.
This parameter allows individual queries to pick different query
optimizer versions.
Specifying latest as a value instructs Cloud Spanner to use the
latest supported query optimizer version. If not specified, Cloud Spanner
uses the optimizer version set at the database level options. Any other
positive integer (from the list of supported optimizer versions)
overrides the default optimizer version for query execution.
The list of supported optimizer versions can be queried from
SPANNER_SYS.SUPPORTED_OPTIMIZER_VERSIONS.
Executing a SQL statement with an invalid optimizer version fails with
an INVALID_ARGUMENT error.
See
https://cloud.google.com/spanner/docs/query-optimizer/manage-query-optimizer
for more information on managing the query optimizer.
The optimizer_version statement hint has precedence over this setting.
An option to control the selection of optimizer version.
This parameter allows individual queries to pick different query
optimizer versions.
Specifying latest as a value instructs Cloud Spanner to use the
latest supported query optimizer version. If not specified, Cloud Spanner
uses the optimizer version set at the database level options. Any other
positive integer (from the list of supported optimizer versions)
overrides the default optimizer version for query execution.
The list of supported optimizer versions can be queried from
SPANNER_SYS.SUPPORTED_OPTIMIZER_VERSIONS.
Executing a SQL statement with an invalid optimizer version fails with
an INVALID_ARGUMENT error.
See
https://cloud.google.com/spanner/docs/query-optimizer/manage-query-optimizer
for more information on managing the query optimizer.
The optimizer_version statement hint has precedence over this setting.
An option to control the selection of optimizer statistics package.
This parameter allows individual queries to use a different query
optimizer statistics package.
Specifying latest as a value instructs Cloud Spanner to use the latest
generated statistics package. If not specified, Cloud Spanner uses
the statistics package set at the database level options, or the latest
package if the database option is not set.
The statistics package requested by the query has to be exempt from
garbage collection. This can be achieved with the following DDL
statement:
<code><code>
ALTER STATISTICS <package_name> SET OPTIONS (allow_gc=false)
</code></code><code>
The list of available statistics packages can be queried from
</code>INFORMATION_SCHEMA.SPANNER_STATISTICS<code>.
Executing a SQL statement with an invalid optimizer statistics package
or with a statistics package that allows garbage collection fails with
an </code>INVALID_ARGUMENT error.
An option to control the selection of optimizer statistics package.
This parameter allows individual queries to use a different query
optimizer statistics package.
Specifying latest as a value instructs Cloud Spanner to use the latest
generated statistics package. If not specified, Cloud Spanner uses
the statistics package set at the database level options, or the latest
package if the database option is not set.
The statistics package requested by the query has to be exempt from
garbage collection. This can be achieved with the following DDL
statement:
<code><code>
ALTER STATISTICS <package_name> SET OPTIONS (allow_gc=false)
</code></code><code>
The list of available statistics packages can be queried from
</code>INFORMATION_SCHEMA.SPANNER_STATISTICS<code>.
Executing a SQL statement with an invalid optimizer statistics package
or with a statistics package that allows garbage collection fails with
an </code>INVALID_ARGUMENT error.
An option to control the selection of optimizer version.
This parameter allows individual queries to pick different query
optimizer versions.
Specifying latest as a value instructs Cloud Spanner to use the
latest supported query optimizer version. If not specified, Cloud Spanner
uses the optimizer version set at the database level options. Any other
positive integer (from the list of supported optimizer versions)
overrides the default optimizer version for query execution.
The list of supported optimizer versions can be queried from
SPANNER_SYS.SUPPORTED_OPTIMIZER_VERSIONS.
Executing a SQL statement with an invalid optimizer version fails with
an INVALID_ARGUMENT error.
See
https://cloud.google.com/spanner/docs/query-optimizer/manage-query-optimizer
for more information on managing the query optimizer.
The optimizer_version statement hint has precedence over this setting.
An option to control the selection of optimizer version.
This parameter allows individual queries to pick different query
optimizer versions.
Specifying latest as a value instructs Cloud Spanner to use the
latest supported query optimizer version. If not specified, Cloud Spanner
uses the optimizer version set at the database level options. Any other
positive integer (from the list of supported optimizer versions)
overrides the default optimizer version for query execution.
The list of supported optimizer versions can be queried from
SPANNER_SYS.SUPPORTED_OPTIMIZER_VERSIONS.
Executing a SQL statement with an invalid optimizer version fails with
an INVALID_ARGUMENT error.
See
https://cloud.google.com/spanner/docs/query-optimizer/manage-query-optimizer
for more information on managing the query optimizer.
The optimizer_version statement hint has precedence over this setting.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-01-28 UTC."],[],[]]