sessionctx/variable: fix panic when set variable='' (#9533) #9541
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/run-all-tests tidb-test=release-2.0 tidb-private-test=release-2.0 tikv=release-2.0 |
crazycs520
added
sig/execution
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LGTM |
shenli
added
status/LGT2
shenli
approved these changes
Mar 4, 2019
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What problem does this PR solve?
cherry-pick #9533