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Added ALTER DATABASE parsing #199

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merged 1 commit into from
Oct 31, 2022
Merged

Added ALTER DATABASE parsing #199

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8 changes: 6 additions & 2 deletions go/vt/sqlparser/ast.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1488,11 +1488,15 @@ type DBDDL struct {
// Format formats the node.
func (node *DBDDL) Format(buf *TrackedBuffer) {
switch node.Action {
case CreateStr:
case CreateStr, AlterStr:
exists := ""
if node.IfNotExists {
exists = " if not exists"
}
dbname := ""
if len(node.DBName) > 0 {
dbname = fmt.Sprintf(" %s", node.DBName)
}
charsetCollateStr := ""
for _, obj := range node.CharsetCollate {
typeStr := strings.ToLower(obj.Type)
Expand All @@ -1503,7 +1507,7 @@ func (node *DBDDL) Format(buf *TrackedBuffer) {
charsetCollateStr += fmt.Sprintf("%s %s %s", charsetDef, typeStr, obj.Value)
}

buf.WriteString(fmt.Sprintf("%s database%s %s%s", node.Action, exists, node.DBName, charsetCollateStr))
buf.WriteString(fmt.Sprintf("%s database%s%s%s", node.Action, exists, dbname, charsetCollateStr))
case DropStr:
exists := ""
if node.IfExists {
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12 changes: 12 additions & 0 deletions go/vt/sqlparser/parse_test.go
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Expand Up @@ -2098,6 +2098,18 @@ var (
}, {
input: "create database if not exists test_db",
output: "create database if not exists test_db",
}, {
input: "alter database test_db character set utf8mb3",
}, {
input: "alter database test_db collate utf8mb3_bin",
}, {
input: "alter database test_db character set utf8mb3 collate utf8mb3_bin",
}, {
input: "alter database character set utf8mb3",
}, {
input: "alter database collate utf8mb3_bin",
}, {
input: "alter database character set utf8mb3 collate utf8mb3_bin",
}, {
input: "drop database test_db",
}, {
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