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linesubstring - out-of-range limits
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:memory: #use in-memory database
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SELECT AsText(Line_Substring(GeomFromText("LINESTRING(0 0, 10 0)"), -1, 2))
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1 # rows (not including the header row)
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AsText(Line_Substring(GeomFromText("LINESTRING(0 0, 10 0)"), -1, 2))