66 lines
1.0 KiB
Go
66 lines
1.0 KiB
Go
// Copyright (C) 2017 ScyllaDB
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// Use of this source code is governed by a ALv2-style
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// license that can be found in the LICENSE file.
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package qb
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import (
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"bytes"
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)
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type columns []string
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func (cols columns) writeCql(cql *bytes.Buffer) {
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for i, c := range cols {
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cql.WriteString(c)
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if i < len(cols)-1 {
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cql.WriteByte(',')
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}
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}
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}
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type using struct {
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timestamp bool
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ttl bool
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}
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func (u using) writeCql(cql *bytes.Buffer) (names []string) {
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if u.timestamp {
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cql.WriteString("USING TIMESTAMP ? ")
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names = append(names, "_ts")
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}
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if u.ttl {
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if u.timestamp {
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cql.WriteString("AND TTL ? ")
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} else {
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cql.WriteString("USING TTL ? ")
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}
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names = append(names, "_ttl")
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}
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return
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}
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type where cmps
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func (w where) writeCql(cql *bytes.Buffer) (names []string) {
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if len(w) == 0 {
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return
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}
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cql.WriteString("WHERE ")
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return cmps(w).writeCql(cql)
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}
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type _if cmps
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func (w _if) writeCql(cql *bytes.Buffer) (names []string) {
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if len(w) == 0 {
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return
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}
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cql.WriteString("IF ")
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return cmps(w).writeCql(cql)
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}
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