[parser] *: support new aggregation function var_pop and var_samp (pi…

…ngcap#53)
xhebox · Dec 4, 2018 · 89fc7e8 · 89fc7e8
1 parent b43dd72
commit 89fc7e8
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Showing 5 changed files with 5,487 additions and 5,420 deletions.
diff --git a/parser/ast/functions.go b/parser/ast/functions.go
@@ -484,6 +484,10 @@ const (
 	AggFuncBitXor = "bit_xor"
 	// AggFuncBitAnd is the name of bit_and function.
 	AggFuncBitAnd = "bit_and"
+	// AggFuncVarPop is the name of var_pop function
+	AggFuncVarPop = "var_pop"
+	// AggFuncVarSamp is the name of var_samp function
+	AggFuncVarSamp = "var_samp"
 	// AggFuncStddevPop is the name of stddev_pop function
 	AggFuncStddevPop = "stddev_pop"
 	// AggFuncStddevSamp is the name of stddev_samp function

diff --git a/parser/misc.go b/parser/misc.go
@@ -516,6 +516,9 @@ var tokenMap = map[string]int{
 	"VARBINARY":                varbinaryType,
 	"VARCHAR":                  varcharType,
 	"VARIABLES":                variables,
+	"VARIANCE":                 varPop,
+	"VAR_POP":                  varPop,
+	"VAR_SAMP":                 varSamp,
 	"VIEW":                     view,
 	"VIRTUAL":                  virtual,
 	"WARNINGS":                 warnings,