sessionctx: set tiflash pipeline model to true by default (#45516)

close #45618
pingcap · Aug 1, 2023 · 2d23240 · 2d23240
1 parent e5e507a
commit 2d23240
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Showing 2 changed files with 3 additions and 3 deletions.
diff --git a/sessionctx/variable/session.go b/sessionctx/variable/session.go
@@ -885,7 +885,7 @@ type SessionVars struct {
  TiFlashMaxBytesBeforeExternalSort int64
 
  // TiFlashEnablePipelineMode means if we should use pipeline model to execute query or not in tiflash.
- // Default value is `false`, means never use pipeline model in tiflash.
+ // Default value is `true`, means never use pipeline model in tiflash.
  // Value set to `true` means try to execute query with pipeline model in tiflash.
  TiFlashEnablePipelineMode bool
 

diff --git a/sessionctx/variable/tidb_vars.go b/sessionctx/variable/tidb_vars.go
@@ -411,7 +411,7 @@ const (
  TiDBMaxBytesBeforeTiFlashExternalSort = "tidb_max_bytes_before_tiflash_external_sort"
 
  // TiDBEnableTiFlashPipelineMode means if we should use pipeline model to execute query or not in tiflash.
- // Default value is `false`, means never use pipeline model in tiflash.
+ // Default value is `true`, means never use pipeline model in tiflash.
  // Value set to `true` means try to execute query with pipeline model in tiflash.
  TiDBEnableTiFlashPipelineMode = "tidb_enable_tiflash_pipeline_model"
 
@@ -1170,7 +1170,7 @@ const (
  DefTiFlashMaxBytesBeforeExternalJoin = -1
  DefTiFlashMaxBytesBeforeExternalGroupBy = -1
  DefTiFlashMaxBytesBeforeExternalSort = -1
- DefTiDBEnableTiFlashPipelineMode = false
+ DefTiDBEnableTiFlashPipelineMode = true
  DefTiDBMPPStoreFailTTL = "60s"
  DefTiDBTxnMode = ""
  DefTiDBRowFormatV1 = 1