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…alog # Conflicts: # datafusion/core/src/execution/session_state.rs
# Conflicts: # datafusion/execution/src/config.rs
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Which issue does this PR close?
This PR builds on #25887 so that should be merged first.
Rationale for this change
To be completed
What changes are included in this PR?
LogicalPlan::DescribeTablehas been made been renamed toLogicalPlan::Showand extended to support all show statements.Handling of
showstatements has been moved fromsql::statementtocore::physical_planner.The implementations themselves have been decoupled from the
information_schematables. This allowsSHOWstatements to work even if the information schema provider is not enabled.A new
common::information_schemamodule has been added to avoid string based duplication of the information_schema schema. In other words, duplicate magic strings have been removed.Are these changes tested?
Covered by SLTs
Are there any user-facing changes?
Yes
LogicalPlan::DescribeTablehas been replaced withLogicalPlan::ShowSHOWstatements is no longer tied to theinformation_schemaschema being accessible in the cataloginformation_schema.viewsno longer contains base tables