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MDEV-28072: JSON_EXTRACT has inconsistent behavior with '0' value in json

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path (when range is used)

Analysis: When 0 comes after space, then the json path parser changes the
state to JE_SYN instead of PS_Z (meaning parse zero). Hence the warning.
Fix: Make the state PS_Z instead of JE_SYN.
This commit is contained in:
Rucha Deodhar
2022-03-21 12:43:17 +05:30
parent 95a9078efc
commit c69d72c2e4
3 changed files with 855 additions and 2 deletions
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2
strings/json_lib.c
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@@ -1091,7 +1091,7 @@ static int json_path_transitions[N_PATH_STATES][N_PATH_CLASSES]=
PS_INT, PS_INT, JE_SYN, JE_SYN, PS_AS, JE_SYN, JE_SYN, JE_SYN,
JE_NOT_JSON_CHR, JE_BAD_CHR},
/* AS */ { JE_EOS, JE_SYN, JE_SYN, JE_SYN, PS_T, PS_PT, JE_SYN, PS_NEG,
JE_SYN, PS_INT, PS_LAST, PS_AS, JE_SYN, JE_SYN, JE_SYN,
PS_Z, PS_INT, PS_LAST, PS_AS, JE_SYN, JE_SYN, JE_SYN,
JE_NOT_JSON_CHR, JE_BAD_CHR},
/* KEY */ { JE_EOS, PS_KNM, PS_KWD, JE_SYN, PS_KNM, PS_KNM, JE_SYN, JE_SYN,
PS_KNM, PS_KNM, PS_KNM, PS_KNM, PS_KNM, JE_SYN, PS_KEYX, PS_KNM,