Add regex rewrite kernel to find literal[a,b]{x,y} in a string #1
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Signed-off-by: Haoyang Li <[email protected]>
Signed-off-by: Haoyang Li <[email protected]>
Signed-off-by: Haoyang Li <[email protected]>
Signed-off-by: Haoyang Li <[email protected]>
Signed-off-by: Haoyang Li <[email protected]>
Signed-off-by: Haoyang Li <[email protected]>
Signed-off-by: Haoyang Li <[email protected]>
Signed-off-by: Haoyang Li <[email protected]>
Signed-off-by: Haoyang Li <[email protected]>
Signed-off-by: Haoyang Li <[email protected]>
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PR in main repo: NVIDIA#2041
This pr adds a custom kernel to rewrite regex patterns like literal[a-b]{x,y} to get performance gain for rlike in spark-rapids.
It checks if each string contains a substring that starts with a given prefix and follows at least x characters whose codepoints are in the range of [a,b].