You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@calcite.apache.org by "zhaowang (Jira)" <ji...@apache.org> on 2025/07/12 18:25:00 UTC
[jira] [Commented] (CALCITE-7079) Mongodb Adapter unable to translate multiple $ne condition conposed of "AND"
[ https://issues.apache.org/jira/browse/CALCITE-7079?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18004889#comment-18004889 ]
zhaowang commented on CALCITE-7079:
-----------------------------------
xx and (state <> 'a' or state <> 'b'), This condition execute wrong, I have tested it multiple times, it's not not a bug caused by ReduceExpressionsRule. I have resubmitted the PR code and fixed the case in MongoDB Adapter. [~jensen]
> Mongodb Adapter unable to translate multiple $ne condition conposed of "AND"
> ----------------------------------------------------------------------------
>
> Key: CALCITE-7079
> URL: https://issues.apache.org/jira/browse/CALCITE-7079
> Project: Calcite
> Issue Type: Bug
> Reporter: zhaowang
> Assignee: zhaowang
> Priority: Major
> Labels: pull-request-available
>
> Mongodb adapter translate more than one $ne condition error.
> run sql:
> {code:java}
> select city, state from zips where city <> 'ABERDEEN' and city <> 'AIKEN'{code}
> Query plan:
> {code:java}
> {
> "$match": {
> "city": {
> "$ne": "AIKEN"
> }
> }
> }, {$project: {CITY: '$city', STATE: '$state'}}{code}
> The condition (city <> 'ABERDEEN') lost，actually, more than one $ne condition conpose of AND have to translate to $nin operation
> Expected plan:
> {code:java}
> {
> "$match": {
> "city": {
> "$nin": [
> "AIKEN",
> "ABERDEEN"
> ]
> }
> }
> }, {$project: {CITY: '$city', STATE: '$state'}} {code}
>
> More test case:
> Case 1:
> {code:java}
> select city, state from zips where city <> 'ABERDEEN' and city <> 'AIKEN' and state <> 'a' and state <> 'b' {code}
> Query plan:
> {code:java}
> {
> "$match": {
> "city": {
> "$ne": "AIKEN"
> },
> "state": {
> "$ne": "b"
> }
> }
> }, {$project: {CITY: '$city', STATE: '$state'}} {code}
> Expected plan:
> {code:java}
> {
> "$match": {
> "city": {
> "$nin": [
> "ABERDEEN",
> "AIKEN"
> ]
> },
> "state": {
> "$nin": [
> "a",
> "b"
> ]
> }
> }
> }, {$project: {CITY: '$city', STATE: '$state'}} {code}
>
> Case 2:
> {code:java}
> select city, state from zips where city <> 'ABERDEEN' and city <> 'AIKEN' or (state <> 'a' and state <> 'b') {code}
> Query plan:
> {code:java}
> {
> "$match": {
> "$or": [
> {
> "city": {
> "$ne": "AIKEN"
> }
> },
> {
> "state": {
> "$ne": "b"
> }
> }
> ]
> }
> }, {$project: {CITY: '$city', STATE: '$state'}} {code}
> Expected plan:
> {code:java}
> {
> "$match": {
> "$or": [
> {
> "city": {
> "$nin": [
> "ABERDEEN",
> "AIKEN"
> ]
> }
> },
> {
> "state": {
> "$nin": [
> "a",
> "b"
> ]
> }
> }
> ]
> }
> }, {$project: {CITY: '$city', STATE: '$state'}} {code}
>
> Case 3:
> {code:java}
> select city, state from zips where city <> 'ABERDEEN' and city <> 'AIKEN' and state <> 'a'{code}
> Query plan:
> {code:java}
> {
> "$match": {
> "city": {
> "$nin": [
> "ABERDEEN",
> "AIKEN"
> ]
> },
> "state": {
> "$ne": "a"
> }
> }
> }, {$project: {CITY: '$city', STATE: '$state'}} {code}
> Expected plan:
> {code:java}
> {
> "$match": {
> "city": {
> "$nin": [
> "ABERDEEN",
> "AIKEN"
> ]
> },
> "state": {
> "$ne": "a"
> }
> }
> } , {$project: {CITY: '$city', STATE: '$state'}} {code}
>
--
This message was sent by Atlassian Jira
(v8.20.10#820010)