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39 lines
836 B
Go
39 lines
836 B
Go
package command
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import (
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"strings"
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"github.com/rqlite/rqlite/v8/command/proto"
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"github.com/rqlite/sql"
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)
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// Rewrite rewrites the statements such that RANDOM is rewritten,
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// if r is true.
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func Rewrite(stmts []*proto.Statement, r bool) error {
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if !r {
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return nil
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}
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rw := &sql.Rewriter{
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RewriteRand: r,
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}
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for i := range stmts {
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// Only replace the incoming statement with a rewritten version if
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// there was no error, or if the rewriter did anything. If the statement
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// is bad SQLite syntax, let SQLite deal with it -- and let its error
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// be returned. Those errors will probably be clearer.
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s, err := sql.NewParser(strings.NewReader(stmts[i].Sql)).ParseStatement()
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if err != nil {
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continue
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}
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s, f, err := rw.Do(s)
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if err != nil || !f {
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continue
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}
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stmts[i].Sql = s.String()
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}
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return nil
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}
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