mirror of
https://github.com/neilotoole/sq.git
synced 2024-12-18 21:52:28 +03:00
37 lines
646 B
Go
37 lines
646 B
Go
package render
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import (
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"fmt"
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"math"
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"github.com/neilotoole/sq/libsq/ast"
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)
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func doRange(_ *Context, rr *ast.RowRangeNode) (string, error) {
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if rr == nil {
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return "", nil
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}
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if rr.Limit < 0 && rr.Offset < 0 {
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return "", nil
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}
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limit := ""
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offset := ""
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if rr.Limit > -1 {
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limit = fmt.Sprintf("LIMIT %d", rr.Limit)
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}
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if rr.Offset > -1 {
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offset = fmt.Sprintf("OFFSET %d", rr.Offset)
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if rr.Limit == -1 {
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// MySQL requires a LIMIT if OFFSET is used. Therefore
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// we make the LIMIT a very large number
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limit = fmt.Sprintf("LIMIT %d", uint64(math.MaxInt64))
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}
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}
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sql := AppendSQL(limit, offset)
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return sql, nil
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}
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