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Posted to derby-dev@db.apache.org by "A B (JIRA)" <ji...@apache.org> on 2008/04/02 05:33:25 UTC
[jira] Updated: (DERBY-3023) Different result rows depending on the sequence of INNER JOIN and OUTER JOIN

     [ https://issues.apache.org/jira/browse/DERBY-3023?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

A B updated DERBY-3023:
-----------------------

    Attachment: releaseNote.html

Attaching a release note for this issue.  I had to use MS Word to create the file and as a result it doesn't pass the "ReleaseNoteReader" tool check--i.e. it's going to have to be "scrubbed" in order for the release note generator to work correctly.  I apologize in advance, but I'm hoping someone else can do the scrubbing as it was not as straightforward as I had hoped it would be, and I don't really have time to figure it all out...

> Different result rows depending on the sequence of INNER JOIN and OUTER JOIN
> ----------------------------------------------------------------------------
>
>                 Key: DERBY-3023
>                 URL: https://issues.apache.org/jira/browse/DERBY-3023
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.1.2.1, 10.2.2.0, 10.3.1.4
>         Environment: Windows XP, Java 1.4.2
>            Reporter: Stefan Cordes
>            Assignee: A B
>             Fix For: 10.3.2.2, 10.4.0.0
>
>         Attachments: d3023_notTested_v1.patch, d3023_repro.sql, d3023_v2.patch, derby-02-search-joins.zip, derby-02-search-joins2.zip, DerbySearchJoins.java, releaseNote.html, RUNTIMESTATISTICS-10.3.zip, Statement10.3.1.4 - (561794)-j1.4.2_10.zip
>
>
> We have a complex SQL joining 11 Tables via INNER JOIN and OUTER JOIN.
> These SQLs were tested against an z/OS DB2 Version 8.
> After moving to our local platform with Derby we found out the resultsets returned by the SQLs were too less.
> I tested our "old style" SQL which results in 889 rows.
> Our new style SQL expected to give similar rows but gives *0*.
> After some work we found a workaround: first place all the "INNER JOIN"s in the SQL and then the "OUTER JOIN"s.
> {code:title=Result of testprogram}
> Derby=10.3-b561794
> Test 10.3-b561794-old-style-sql
> 889 Rows in 1703ms
> Test 10.3-b561794-new-style-sql
> 0 Rows in 563ms  _(expected 924 rows instead)_
> Test 10.3-b561794-new-style-sql-only-inner
> 2 Rows in 766ms _(only inner joins, no outer joins but larger result)_
> Test 10.3-b561794-new-style-sql_first-inner-joins
> 924 Rows in 578ms
> Test 10.3-b561794-new-style-sql_without-condition
> 924 Rows in 438ms
> {code}
> Here our initial used SQL:
> {code:title=SQL giving wrong result (0 rows)}
> SELECT O4Work.ESVN01.NU_BUY_CPY AS PO_BuyCompanyNo, O4Work.ESVN01.NU_ODR AS PO_Number, O4Work.ESVN01.FL_ODR_CAE AS PO_Type, O4Work.ESVN01.NU_MCS_SPY AS PO_SupplierNo, O4Work.ESVN01.NU_ST3 AS PO_StatusNo, O4Work.ESVN01.DA_SPY_COY_PRT AS PO_SCPrintDate, O4Work.ESVN01.FL_SAS AS PO_SeasFlag, CASE WHEN (SELECT COUNT(O4Work.ESVNA5.ID_PTE) FROM O4Work.ESVNA5 WHERE O4Work.ESVN02.NU_BUY_CPY = O4Work.ESVNA5.NU_BUY_CPY AND O4Work.ESVN02.NU_ODR = O4Work.ESVNA5.NU_ODR AND O4Work.ESVN02.NU_PST = O4Work.ESVNA5.NU_PST) = 0 THEN 'N' ELSE 'Y' END AS POPA_PictureID, CASE WHEN (SELECT COUNT(O4Work.ESVNG3.NU_ODR) FROM O4Work.ESVNG3 WHERE O4Work.ESVN01.NU_BUY_CPY = O4Work.ESVNG3.NU_BUY_CPY AND O4Work.ESVN01.NU_ODR = O4Work.ESVNG3.NU_ODR) = 0 THEN 'N' ELSE 'Y' END AS ON_ID, O4Work.ESVN02.NU_PST AS POP_Position_Id, O4Work.ESVN02.NU_CTT AS POP_ContractNo, O4Work.ESVN02.NU_ARO_CTT AS POP_ArosContractNo, O4Work.ESVN02.NU_ST3 AS POP_StatusNo, O4Work.ESVN02.DA_CAE AS POP_CreationDate, O4Work.ESVN02.DA_LAT_AMD AS POP_LastAmendDate, O4Work.ESVNA0.NU_SSN_IDE AS POPD_SeasonInd,  O4Work.ESVNA0.NU_STL_ID1 AS POPD_StyleId, O4Work.ESVNA0.NU_SRY_ID1 AS POPD_StoryID, O4Work.ESVNA0.NU_LC1 AS POPD_LicenseID, O4Work.ESVP00.NU_CSY AS SER_ClassNo, O4Work.ESVP00.NU_COE AS SER_CodeNo, O4Work.ESVP00.NU_SRL AS SER_SerialNo, O4Work.ESVP00.NU_PIK_MOD AS SER_PickingM, O4Work.ESVN03.NU_MT1_CPY AS POPC_MasterCpyNo, O4Work.ESVN03.QU_ODR AS POPC_OrderedQty, O4Work.ESVN03.DA_EDD AS POPC_Edd, O4Work.ESVN03.DA_LDD AS POPC_Ldd, O4Work.ESVN03.DA_PAD AS POPC_Pad, O4Work.ESVN03.DA_SAD AS POPC_Sad, O4Work.ESVN03.PR_SCP AS POPC_SupCstPrice, O4Work.ESVN03.NU_SCP_CR1 AS POPC_SupCstPrCurr, O4Work.ESVN03.NU_ST3 AS POPC_StatusNo, O4Work.ESVN03.NU_COY_FRM_ODR AS POPC_Src_PO_Number, O4Work.ESVN03.NU_COY_UTL_ODR AS POPC_Tgt_PO_Number, O4Work.ESVN03.DA_FLR_RDY AS POPC_FRM_DATE, O4Work.ESVN03.FL_CSG AS POPC_CS_FLAG, O4Work.ESVN03.NU_PAK_MOD_SPY AS POPC_PackSupplNo, O4Work.ESVN03.NU_PAK_MOD_DCR AS POPC_PackingDCNo, O4Work.ESVN03.NU_PS2_MOD AS POPC_PresMethodNo, O4Work.ESVN04.NU_RTL_CPY AS POPRC_RetailCode, O4Work.ESVN04.PR_PLN_SEL AS POPRC_SellPrice, O4Work.ESVN04.NU_PLN_SEL_PRC_CR1 AS POPRC_SellPrCurr, O4Work.ESVN08.NU_AVE AS POPRCA_AdvertNo, O4Work.ESVQ00.ID_SHP AS SHP_ShippingID, O4Work.ESVQ00.NU_SHP AS SHP_ShippingNo, O4Work.ESVNB0.NU_NTL_PDE_ID1 AS POPDC_NationalID, O4Work.ESVNB0.NU_EQP AS POPDC_EquipNumber, O4Work.ESVNE1.PE_OMU AS POPCC_OMU, CASE WHEN (SELECT COUNT(O4Work.ESVN07.NU_ODR) FROM O4Work.ESVN07 WHERE O4Work.ESVN03.NU_BUY_CPY = O4Work.ESVN07.NU_BUY_CPY AND O4Work.ESVN03.NU_MT1_CPY = O4Work.ESVN07.NU_MT1_CPY AND O4Work.ESVN03.NU_ODR = O4Work.ESVN07.NU_ODR AND O4Work.ESVN03.NU_PST = O4Work.ESVN07.NU_PST AND O4Work.ESVN07.FL_ALE_RMK = 'Y') = 0 THEN 'N' ELSE 'Y' END AS POPCU_AllocRem FROM O4Work.ESVN02 
> INNER JOIN O4Work.ESVN01 ON O4Work.ESVN02.NU_BUY_CPY = O4Work.ESVN01.NU_BUY_CPY AND O4Work.ESVN02.NU_ODR = O4Work.ESVN01.NU_ODR 
> INNER JOIN O4Work.ESVNA0 ON O4Work.ESVN02.NU_BUY_CPY = O4Work.ESVNA0.NU_BUY_CPY AND O4Work.ESVN02.NU_ODR = O4Work.ESVNA0.NU_ODR AND O4Work.ESVN02.NU_PST = O4Work.ESVNA0.NU_PST 
> INNER JOIN O4Work.ESVP00 ON O4Work.ESVNA0.ID_SRL = O4Work.ESVP00.ID_SRL 
> LEFT OUTER JOIN O4Work.ESVNA4 ON O4Work.ESVNA0.NU_BUY_CPY = O4Work.ESVNA4.NU_BUY_CPY AND O4Work.ESVNA0.NU_ODR = O4Work.ESVNA4.NU_ODR AND O4Work.ESVNA0.NU_PST = O4Work.ESVNA4.NU_PST 
> INNER JOIN O4Work.ESVN03 ON O4Work.ESVN02.NU_BUY_CPY = O4Work.ESVN03.NU_BUY_CPY AND O4Work.ESVN02.NU_ODR = O4Work.ESVN03.NU_ODR AND O4Work.ESVN02.NU_PST = O4Work.ESVN03.NU_PST 
> LEFT OUTER JOIN O4Work.ESVN04 ON O4Work.ESVN03.NU_BUY_CPY = O4Work.ESVN04.NU_BUY_CPY AND O4Work.ESVN03.NU_MT1_CPY = O4Work.ESVN04.NU_MT1_CPY AND O4Work.ESVN03.NU_ODR = O4Work.ESVN04.NU_ODR AND O4Work.ESVN03.NU_PST = O4Work.ESVN04.NU_PST 
> LEFT OUTER JOIN O4Work.ESVN08 ON O4Work.ESVN04.NU_BUY_CPY = O4Work.ESVN08.NU_BUY_CPY AND O4Work.ESVN04.NU_RTL_CPY = O4Work.ESVN08.NU_RTL_CPY AND O4Work.ESVN04.NU_MT1_CPY = O4Work.ESVN08.NU_MT1_CPY AND O4Work.ESVN04.NU_ODR = O4Work.ESVN08.NU_ODR AND O4Work.ESVN04.NU_PST = O4Work.ESVN08.NU_PST 
> INNER JOIN O4Work.ESVQ00 ON O4Work.ESVN03.ID_SHP = O4Work.ESVQ00.ID_SHP 
> INNER JOIN O4Work.ESVNB0 ON O4Work.ESVN03.NU_BUY_CPY = O4Work.ESVNB0.NU_BUY_CPY AND O4Work.ESVN03.NU_MT1_CPY = O4Work.ESVNB0.NU_MT1_CPY AND O4Work.ESVN03.NU_ODR = O4Work.ESVNB0.NU_ODR AND O4Work.ESVN03.NU_PST = O4Work.ESVNB0.NU_PST 
> INNER JOIN O4Work.ESVNE1 ON O4Work.ESVN03.NU_BUY_CPY = O4Work.ESVNE1.NU_BUY_CPY AND O4Work.ESVN03.NU_MT1_CPY = O4Work.ESVNE1.NU_MT1_CPY AND O4Work.ESVN03.NU_ODR = O4Work.ESVNE1.NU_ODR AND O4Work.ESVN03.NU_PST = O4Work.ESVNE1.NU_PST 
> WHERE O4Work.ESVN01.NU_BUY_CPY = 99 AND O4Work.ESVNA0.NU_CPY_GRP = 0
> {code}
> and the one with moved inner joins:
> {code:title=SQL giving correct result (924 rows)}
> SELECT O4Work.ESVN01.NU_BUY_CPY AS PO_BuyCompanyNo, O4Work.ESVN01.NU_ODR AS PO_Number, O4Work.ESVN01.FL_ODR_CAE AS PO_Type, O4Work.ESVN01.NU_MCS_SPY AS PO_SupplierNo, O4Work.ESVN01.NU_ST3 AS PO_StatusNo, O4Work.ESVN01.DA_SPY_COY_PRT AS PO_SCPrintDate, O4Work.ESVN01.FL_SAS AS PO_SeasFlag, CASE WHEN (SELECT COUNT(O4Work.ESVNA5.ID_PTE) FROM O4Work.ESVNA5 WHERE O4Work.ESVN02.NU_BUY_CPY = O4Work.ESVNA5.NU_BUY_CPY AND O4Work.ESVN02.NU_ODR = O4Work.ESVNA5.NU_ODR AND O4Work.ESVN02.NU_PST = O4Work.ESVNA5.NU_PST) = 0 THEN 'N' ELSE 'Y' END AS POPA_PictureID, CASE WHEN (SELECT COUNT(O4Work.ESVNG3.NU_ODR) FROM O4Work.ESVNG3 WHERE O4Work.ESVN01.NU_BUY_CPY = O4Work.ESVNG3.NU_BUY_CPY AND O4Work.ESVN01.NU_ODR = O4Work.ESVNG3.NU_ODR) = 0 THEN 'N' ELSE 'Y' END AS ON_ID, O4Work.ESVN02.NU_PST AS POP_Position_Id, O4Work.ESVN02.NU_CTT AS POP_ContractNo, O4Work.ESVN02.NU_ARO_CTT AS POP_ArosContractNo, O4Work.ESVN02.NU_ST3 AS POP_StatusNo, O4Work.ESVN02.DA_CAE AS POP_CreationDate, O4Work.ESVN02.DA_LAT_AMD AS POP_LastAmendDate, O4Work.ESVNA0.NU_SSN_IDE AS POPD_SeasonInd,  O4Work.ESVNA0.NU_STL_ID1 AS POPD_StyleId, O4Work.ESVNA0.NU_SRY_ID1 AS POPD_StoryID, O4Work.ESVNA0.NU_LC1 AS POPD_LicenseID, O4Work.ESVP00.NU_CSY AS SER_ClassNo, O4Work.ESVP00.NU_COE AS SER_CodeNo, O4Work.ESVP00.NU_SRL AS SER_SerialNo, O4Work.ESVP00.NU_PIK_MOD AS SER_PickingM, O4Work.ESVN03.NU_MT1_CPY AS POPC_MasterCpyNo, O4Work.ESVN03.QU_ODR AS POPC_OrderedQty, O4Work.ESVN03.DA_EDD AS POPC_Edd, O4Work.ESVN03.DA_LDD AS POPC_Ldd, O4Work.ESVN03.DA_PAD AS POPC_Pad, O4Work.ESVN03.DA_SAD AS POPC_Sad, O4Work.ESVN03.PR_SCP AS POPC_SupCstPrice, O4Work.ESVN03.NU_SCP_CR1 AS POPC_SupCstPrCurr, O4Work.ESVN03.NU_ST3 AS POPC_StatusNo, O4Work.ESVN03.NU_COY_FRM_ODR AS POPC_Src_PO_Number, O4Work.ESVN03.NU_COY_UTL_ODR AS POPC_Tgt_PO_Number, O4Work.ESVN03.DA_FLR_RDY AS POPC_FRM_DATE, O4Work.ESVN03.FL_CSG AS POPC_CS_FLAG, O4Work.ESVN03.NU_PAK_MOD_SPY AS POPC_PackSupplNo, O4Work.ESVN03.NU_PAK_MOD_DCR AS POPC_PackingDCNo, O4Work.ESVN03.NU_PS2_MOD AS POPC_PresMethodNo, O4Work.ESVN04.NU_RTL_CPY AS POPRC_RetailCode, O4Work.ESVN04.PR_PLN_SEL AS POPRC_SellPrice, O4Work.ESVN04.NU_PLN_SEL_PRC_CR1 AS POPRC_SellPrCurr, O4Work.ESVN08.NU_AVE AS POPRCA_AdvertNo, O4Work.ESVQ00.ID_SHP AS SHP_ShippingID, O4Work.ESVQ00.NU_SHP AS SHP_ShippingNo, O4Work.ESVNB0.NU_NTL_PDE_ID1 AS POPDC_NationalID, O4Work.ESVNB0.NU_EQP AS POPDC_EquipNumber, O4Work.ESVNE1.PE_OMU AS POPCC_OMU, CASE WHEN (SELECT COUNT(O4Work.ESVN07.NU_ODR) FROM O4Work.ESVN07 WHERE O4Work.ESVN03.NU_BUY_CPY = O4Work.ESVN07.NU_BUY_CPY AND O4Work.ESVN03.NU_MT1_CPY = O4Work.ESVN07.NU_MT1_CPY AND O4Work.ESVN03.NU_ODR = O4Work.ESVN07.NU_ODR AND O4Work.ESVN03.NU_PST = O4Work.ESVN07.NU_PST AND O4Work.ESVN07.FL_ALE_RMK = 'Y') = 0 THEN 'N' ELSE 'Y' END AS POPCU_AllocRem FROM O4Work.ESVN02 
> INNER JOIN O4Work.ESVN01 ON O4Work.ESVN02.NU_BUY_CPY = O4Work.ESVN01.NU_BUY_CPY AND O4Work.ESVN02.NU_ODR = O4Work.ESVN01.NU_ODR 
> INNER JOIN O4Work.ESVNA0 ON O4Work.ESVN02.NU_BUY_CPY = O4Work.ESVNA0.NU_BUY_CPY AND O4Work.ESVN02.NU_ODR = O4Work.ESVNA0.NU_ODR AND O4Work.ESVN02.NU_PST = O4Work.ESVNA0.NU_PST 
> INNER JOIN O4Work.ESVP00 ON O4Work.ESVNA0.ID_SRL = O4Work.ESVP00.ID_SRL 
> INNER JOIN O4Work.ESVN03 ON O4Work.ESVN02.NU_BUY_CPY = O4Work.ESVN03.NU_BUY_CPY AND O4Work.ESVN02.NU_ODR = O4Work.ESVN03.NU_ODR AND O4Work.ESVN02.NU_PST = O4Work.ESVN03.NU_PST 
> INNER JOIN O4Work.ESVNB0 ON O4Work.ESVN03.NU_BUY_CPY = O4Work.ESVNB0.NU_BUY_CPY AND O4Work.ESVN03.NU_MT1_CPY = O4Work.ESVNB0.NU_MT1_CPY AND O4Work.ESVN03.NU_ODR = O4Work.ESVNB0.NU_ODR AND O4Work.ESVN03.NU_PST = O4Work.ESVNB0.NU_PST 
> INNER JOIN O4Work.ESVQ00 ON O4Work.ESVN03.ID_SHP = O4Work.ESVQ00.ID_SHP 
> LEFT OUTER JOIN O4Work.ESVNA4 ON O4Work.ESVNA0.NU_BUY_CPY = O4Work.ESVNA4.NU_BUY_CPY AND O4Work.ESVNA0.NU_ODR = O4Work.ESVNA4.NU_ODR AND O4Work.ESVNA0.NU_PST = O4Work.ESVNA4.NU_PST 
> LEFT OUTER JOIN O4Work.ESVN04 ON O4Work.ESVN03.NU_BUY_CPY = O4Work.ESVN04.NU_BUY_CPY AND O4Work.ESVN03.NU_MT1_CPY = O4Work.ESVN04.NU_MT1_CPY AND O4Work.ESVN03.NU_ODR = O4Work.ESVN04.NU_ODR AND O4Work.ESVN03.NU_PST = O4Work.ESVN04.NU_PST 
> LEFT OUTER JOIN O4Work.ESVN08 ON O4Work.ESVN04.NU_BUY_CPY = O4Work.ESVN08.NU_BUY_CPY AND O4Work.ESVN04.NU_RTL_CPY = O4Work.ESVN08.NU_RTL_CPY AND O4Work.ESVN04.NU_MT1_CPY = O4Work.ESVN08.NU_MT1_CPY AND O4Work.ESVN04.NU_ODR = O4Work.ESVN08.NU_ODR AND O4Work.ESVN04.NU_PST = O4Work.ESVN08.NU_PST 
> INNER JOIN O4Work.ESVNE1 ON O4Work.ESVN03.NU_BUY_CPY = O4Work.ESVNE1.NU_BUY_CPY AND O4Work.ESVN03.NU_MT1_CPY = O4Work.ESVNE1.NU_MT1_CPY AND O4Work.ESVN03.NU_ODR = O4Work.ESVNE1.NU_ODR AND O4Work.ESVN03.NU_PST = O4Work.ESVNE1.NU_PST 
> WHERE O4Work.ESVN01.NU_BUY_CPY = 99 AND O4Work.ESVNA0.NU_CPY_GRP = 0
> {code}
> Another curious behavior is that leaving out the condition {{O4Work.ESVNA0.NU_CPY_GRP = 0}} in the first SQL will give us the result of 924 all having O4Work.ESVNA0.NU_CPY_GRP = 0. So evaluation of the condition is buggy, too.
> I think there may be a dependency between this issue and these ones:
> [DERBY-1681|http://issues.apache.org/jira/browse/DERBY-1681] (Regression (wrong results): Join predicate can be ignored for left-most child in a chain of nested unions.)
> [DERBY-1633|https://issues.apache.org/jira/browse/DERBY-1633] (Regression: The fields of views are not being calculated properly since 10.1.2.4)
> Attached is an Eclipse project with the Test-Program (without the Derby-Libraries) and the several RUNTIMESTATISTICS.

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