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loki/pkg/compute/testdata/selection.test

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#
# Selection behavior tests - demonstrating how selection vectors mask results
#
# Selection masking - alternating pattern [true, false, true, false]
NOT bool:[true false true false] select:[true false true false] -> bool:[false null false null]
EQ uint64:[1 2 3 4] uint64:[1 0 3 0] select:[true false true false] -> bool:[true null true null]
AND bool:[true true false false] bool:[true false true false] select:[true false true false] -> bool:[true null false null]
SUBSTRI utf8:["a" "b" "A" "c"] utf8:"a" select:[true false true false] -> bool:[true null true null]
# Single element with selection
NOT bool:[true] select:[true] -> bool:[false]
EQ uint64:[42] uint64:[42] select:[true] -> bool:[true]
EQ uint64:[42] uint64:[42] select:[false] -> bool:[null]
# All false selection - no rows selected
NOT bool:[true false true false] select:[false false false false] -> bool:[null null null null]
EQ uint64:[1 2 3 4] uint64:[1 0 3 0] select:[false false false false] -> bool:[null null null null]
AND bool:[true true false false] bool:[true false true false] select:[false false false false] -> bool:[null null null null]
OR bool:[true true false false] bool:[true false true false] select:[false false false false] -> bool:[null null null null]
SUBSTRI utf8:["a" "b" "A" "c"] utf8:"a" select:[false false false false] -> bool:[null null null null]