39 lines
773 B
Go
39 lines
773 B
Go
package clause
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const (
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LockingStrengthUpdate = "UPDATE"
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LockingStrengthShare = "SHARE"
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LockingOptionsSkipLocked = "SKIP LOCKED"
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LockingOptionsNoWait = "NOWAIT"
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)
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type Locking struct {
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Strength string
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Table Table
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Options string
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}
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// Name where clause name
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func (locking Locking) Name() string {
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return "FOR"
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}
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// Build build where clause
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func (locking Locking) Build(builder Builder) {
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builder.WriteString(locking.Strength)
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if locking.Table.Name != "" {
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builder.WriteString(" OF ")
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builder.WriteQuoted(locking.Table)
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}
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if locking.Options != "" {
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builder.WriteByte(' ')
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builder.WriteString(locking.Options)
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}
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}
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// MergeClause merge order by clauses
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func (locking Locking) MergeClause(clause *Clause) {
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clause.Expression = locking
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}
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