Meituan-Dianping / Meituan-Dianping/SQLAdvisor

sqladvisor :Invalid parameter number 怎么会出现这个问题

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Dominant language
C
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Description

2018-07-16 23:12:34 50130 [Note] 第1步: 对SQL解析优化之后得到的SQL:select * AS * from crmdb2.tbl_dept where ((1 = 1) and (id > 50) and (id < 100))

2018-07-16 23:12:34 50130 [Note] 第2步:开始解析where中的条件:(id > 50)

2018-07-16 23:12:34 50130 [Note] 第3步:SQLAdvisor结束!错误日志:Invalid parameter number

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Research direction

Start by reproducing the reported SQLAdvisor run with the exact SQL and log sequence in this issue, especially the WHERE condition id > 50. Trace the failure that produces “Invalid parameter number”; done means the query completes without that error and returns an index optimization recommendation. No source files or tests are identified in the report.

Written by the indexing model from the issue text.

Assessment

Tech stack
c, sql
Domain
databases
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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