[FEAT MERGE] DAS iterator refactor and keep order optimization
Co-authored-by: saltonz <saltonzh@gmail.com> Co-authored-by: zhenhan.gong@gmail.com <zhenhan.gong@gmail.com> Co-authored-by: Tyshawn <tuyunshan@gmail.com>
This commit is contained in:
@ -296,6 +296,7 @@ _enable_column_store
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_enable_compaction_diagnose
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_enable_compatible_monotonic
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_enable_convert_real_to_decimal
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_enable_das_keep_order
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_enable_dblink_reuse_connection
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_enable_dbms_job_package
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_enable_dbms_lob_partial_update
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@ -711,7 +711,7 @@ Outputs & filters:
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-------------------------------------
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0 - output([wfsydp.WSJJDM], [wfsydp.WSJWSY]), filter(nil), rowset=16
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access([wfsydp.WSJJDM], [wfsydp.WSJWSY]), partitions(p0)
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limit(181819), offset(0), is_index_back=false, is_global_index=true,
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limit(181819), offset(0), is_index_back=false, is_global_index=true, keep_ordering=true,
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range_key([wfsydp.WSJJDM], [wfsydp.WSJWSY], [wfsydp.WSJJZH], [wfsydp.WSDRDM], [wfsydp.WSJYZH]), range(666888,MIN,MIN,MIN,MIN ; 666888,MAX,MAX,MAX,
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MAX),
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range_cond([wfsydp.WSJJDM = '666888'])
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@ -760,14 +760,14 @@ Outputs & filters:
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group(nil), agg_func([T_FUN_SUM(t2.c1)], [T_FUN_COUNT(t2.c1)])
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4 - output([t2.c1]), filter(nil), rowset=16
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access([t2.c1]), partitions(p0)
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is_index_back=false, is_global_index=false,
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is_index_back=false, is_global_index=false, keep_ordering=true,
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range_key([t2.c1]), range(MIN ; MAX)always true,
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range_cond([t2.c1 = :0])
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5 - output([cast(T_FUN_COUNT(*), DECIMAL(24, 4))]), filter(nil), rowset=16
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group(nil), agg_func([T_FUN_COUNT(*)])
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6 - output(nil), filter(nil), rowset=16
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access(nil), partitions(p0)
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is_index_back=false, is_global_index=false,
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is_index_back=false, is_global_index=false, keep_ordering=true,
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range_key([t3.c1]), range(MIN ; MAX)always true,
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range_cond([t3.c1 = :0])
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explain select * from t1 where t1.c1 != (select c2 from t2 where t2.c1 = (select max(c2) from t3 where t3.c1 = t1.c1) order by t2.c2 limit 1);
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@ -803,7 +803,7 @@ Outputs & filters:
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group(nil), agg_func([T_FUN_MAX(t3.c2)])
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6 - output([t3.c2]), filter(nil), rowset=16
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access([t3.c2]), partitions(p0)
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is_index_back=false, is_global_index=false,
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is_index_back=false, is_global_index=false, keep_ordering=true,
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range_key([t3.c1]), range(MIN ; MAX)always true,
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range_cond([t3.c1 = :0])
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7 - output([t2.c1], [t2.c2]), filter(nil), rowset=16
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@ -338,7 +338,7 @@ Outputs & filters:
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-------------------------------------
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0 - output([t1.a], [t1.b]), filter(nil), rowset=16
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access([t1.a], [t1.b]), partitions(p0)
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is_index_back=false, is_global_index=true,
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is_index_back=false, is_global_index=true, keep_ordering=true,
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range_key([t1.b], [t1.a]), range(MIN,MIN ; MAX,MAX)always true
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select * from t1;
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+---+------+
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@ -396,7 +396,7 @@ Outputs & filters:
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-------------------------------------
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0 - output([t1.a], [t1.b]), filter(nil), rowset=16
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access([t1.a], [t1.b]), partitions(p0)
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is_index_back=false, is_global_index=true,
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is_index_back=false, is_global_index=true, keep_ordering=true,
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range_key([t1.b], [t1.a]), range(MIN,MIN ; MAX,MAX)always true
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select * from t1;
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+---+------+
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@ -3283,7 +3283,7 @@ Outputs & filters:
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[gf_ar_mthly_bill.chked_amt], [gf_ar_mthly_bill.writingoff_amt], [gf_ar_mthly_bill.svc_bill_amt], [gf_ar_mthly_bill.svc_ccy], [gf_ar_mthly_bill.env_source],
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[gf_ar_mthly_bill.metadata_source], [gf_ar_mthly_bill.setl_time_zone], [gf_ar_mthly_bill.actg_time_zone], [gf_ar_mthly_bill.inter_trade_flag], [gf_ar_mthly_bill.actg_bill_mth],
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[gf_ar_mthly_bill.auto_writeoff_group_no]), partitions(p0)
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is_index_back=true, is_global_index=true,
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is_index_back=true, is_global_index=true, keep_ordering=true,
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range_key([gf_ar_mthly_bill.tnt_inst_id], [gf_ar_mthly_bill.rcrd_id], [gf_ar_mthly_bill.shadow_pk_0], [gf_ar_mthly_bill.shadow_pk_1]), range(MIN,MIN,
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MIN,MIN ; MAX,MAX,MAX,MAX)always true
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select * from gf_ar_mthly_bill;
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@ -3461,7 +3461,7 @@ Outputs & filters:
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[gf_ar_mthly_bill.chked_amt], [gf_ar_mthly_bill.writingoff_amt], [gf_ar_mthly_bill.svc_bill_amt], [gf_ar_mthly_bill.svc_ccy], [gf_ar_mthly_bill.env_source],
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[gf_ar_mthly_bill.metadata_source], [gf_ar_mthly_bill.setl_time_zone], [gf_ar_mthly_bill.actg_time_zone], [gf_ar_mthly_bill.inter_trade_flag], [gf_ar_mthly_bill.actg_bill_mth],
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[gf_ar_mthly_bill.auto_writeoff_group_no]), partitions(p0)
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is_index_back=true, is_global_index=true,
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is_index_back=true, is_global_index=true, keep_ordering=true,
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range_key([gf_ar_mthly_bill.tnt_inst_id], [gf_ar_mthly_bill.rcrd_id], [gf_ar_mthly_bill.shadow_pk_0], [gf_ar_mthly_bill.shadow_pk_1]), range(MIN,MIN,
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MIN,MIN ; MAX,MAX,MAX,MAX)always true
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select * from gf_ar_mthly_bill;
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