# Three table 1:M join
# |customer| = 150K
# |customer.c_custkey| = |customer| = 150K
# |orders| = 1.5M
# |orders.o_orderKey| = 100K
# |lineitem| = 6M
# |lineitem.l_orderkey| = 1.5M
# |join| = |lineitem| = 6M
select c.c_name, o.o_orderkey, i.l_linenumber
from tpch.customer c,
     tpch.orders o,
     tpch.lineitem i
where c.c_custkey = o.o_custkey
  and o.o_orderkey = i.l_orderkey
---- PLAN
PLAN-ROOT SINK
|
04:HASH JOIN [INNER JOIN]
|  hash predicates: o.o_custkey = c.c_custkey
|  runtime filters: RF000 <- c.c_custkey
|  row-size=66B cardinality=5.76M
|
|--00:SCAN HDFS [tpch.customer c]
|     partitions=1/1 files=1 size=23.08MB
|     row-size=38B cardinality=150.00K
|
03:HASH JOIN [INNER JOIN]
|  hash predicates: i.l_orderkey = o.o_orderkey
|  runtime filters: RF002 <- o.o_orderkey
|  row-size=28B cardinality=5.76M
|
|--01:SCAN HDFS [tpch.orders o]
|     partitions=1/1 files=1 size=162.56MB
|     runtime filters: RF000 -> o.o_custkey
|     row-size=16B cardinality=1.50M
|
02:SCAN HDFS [tpch.lineitem i]
   partitions=1/1 files=1 size=718.94MB
   runtime filters: RF002 -> i.l_orderkey
   row-size=12B cardinality=6.00M
====
# Filter on customer table
# |join| = 1/3 of above = 2M
# Bug: Expected cardinality ~2M
select c.c_name, o.o_orderkey, i.l_linenumber
from tpch.customer c,
     tpch.orders o,
     tpch.lineitem i
where c.c_custkey = o.o_custkey
  and o.o_orderkey = i.l_orderkey
  and c.c_name < 'foo'
---- PLAN
PLAN-ROOT SINK
|
04:HASH JOIN [INNER JOIN]
|  hash predicates: o.o_custkey = c.c_custkey
|  runtime filters: RF000 <- c.c_custkey
|  row-size=66B cardinality=877.79K
|
|--00:SCAN HDFS [tpch.customer c]
|     partitions=1/1 files=1 size=23.08MB
|     predicates: c.c_name < 'foo'
|     row-size=38B cardinality=15.00K
|
03:HASH JOIN [INNER JOIN]
|  hash predicates: i.l_orderkey = o.o_orderkey
|  runtime filters: RF002 <- o.o_orderkey
|  row-size=28B cardinality=5.76M
|
|--01:SCAN HDFS [tpch.orders o]
|     partitions=1/1 files=1 size=162.56MB
|     runtime filters: RF000 -> o.o_custkey
|     row-size=16B cardinality=1.50M
|
02:SCAN HDFS [tpch.lineitem i]
   partitions=1/1 files=1 size=718.94MB
   runtime filters: RF002 -> i.l_orderkey
   row-size=12B cardinality=6.00M
====
# Filter on orders table
# |join| = 1/3 of full join = 2M
# Bug: Expected cardinality ~2M
select c.c_name, o.o_orderkey, i.l_linenumber
from tpch.customer c,
     tpch.orders o,
     tpch.lineitem i
where c.c_custkey = o.o_custkey
  and o.o_orderkey = i.l_orderkey
  and o.o_clerk < 'foo'
---- PLAN
PLAN-ROOT SINK
|
04:HASH JOIN [INNER JOIN]
|  hash predicates: o.o_custkey = c.c_custkey
|  runtime filters: RF000 <- c.c_custkey
|  row-size=93B cardinality=575.77K
|
|--00:SCAN HDFS [tpch.customer c]
|     partitions=1/1 files=1 size=23.08MB
|     row-size=38B cardinality=150.00K
|
03:HASH JOIN [INNER JOIN]
|  hash predicates: i.l_orderkey = o.o_orderkey
|  runtime filters: RF002 <- o.o_orderkey
|  row-size=55B cardinality=575.77K
|
|--01:SCAN HDFS [tpch.orders o]
|     partitions=1/1 files=1 size=162.56MB
|     predicates: o.o_clerk < 'foo'
|     runtime filters: RF000 -> o.o_custkey
|     row-size=43B cardinality=150.00K
|
02:SCAN HDFS [tpch.lineitem i]
   partitions=1/1 files=1 size=718.94MB
   runtime filters: RF002 -> i.l_orderkey
   row-size=12B cardinality=6.00M
====
# Filter on items table
# |join| = 1/3 of full join = 2M
# Bug: Expected cardinality ~2M
select c.c_name, o.o_orderkey, i.l_linenumber
from tpch.customer c,
     tpch.orders o,
     tpch.lineitem i
where c.c_custkey = o.o_custkey
  and o.o_orderkey = i.l_orderkey
  and i.l_suppkey < 1234
---- PLAN
PLAN-ROOT SINK
|
04:HASH JOIN [INNER JOIN]
|  hash predicates: o.o_custkey = c.c_custkey
|  runtime filters: RF000 <- c.c_custkey
|  row-size=74B cardinality=600.12K
|
|--00:SCAN HDFS [tpch.customer c]
|     partitions=1/1 files=1 size=23.08MB
|     row-size=38B cardinality=150.00K
|
03:HASH JOIN [INNER JOIN]
|  hash predicates: o.o_orderkey = i.l_orderkey
|  runtime filters: RF002 <- i.l_orderkey
|  row-size=36B cardinality=600.12K
|
|--02:SCAN HDFS [tpch.lineitem i]
|     partitions=1/1 files=1 size=718.94MB
|     predicates: i.l_suppkey < 1234
|     row-size=20B cardinality=600.12K
|
01:SCAN HDFS [tpch.orders o]
   partitions=1/1 files=1 size=162.56MB
   runtime filters: RF000 -> o.o_custkey, RF002 -> o.o_orderkey
   row-size=16B cardinality=1.50M
====
# Correlated filter on two columns
# |join| = Ave. line items per customer
# |lineitem| / |o.custkey| = 6M / 100K = 60
# Bug: Expected cardinality ~60
select c.c_name, o.o_orderkey, i.l_linenumber
from tpch.customer c,
     tpch.orders o,
     tpch.lineitem i
where c.c_custkey = o.o_custkey
  and o.o_orderkey = i.l_orderkey
  and c.c_custkey = 10
---- PLAN
PLAN-ROOT SINK
|
04:HASH JOIN [INNER JOIN]
|  hash predicates: o.o_custkey = c.c_custkey
|  runtime filters: RF000 <- c.c_custkey
|  row-size=66B cardinality=1
|
|--00:SCAN HDFS [tpch.customer c]
|     partitions=1/1 files=1 size=23.08MB
|     predicates: c.c_custkey = 10
|     row-size=38B cardinality=1
|
03:HASH JOIN [INNER JOIN]
|  hash predicates: i.l_orderkey = o.o_orderkey
|  runtime filters: RF002 <- o.o_orderkey
|  row-size=28B cardinality=58
|
|--01:SCAN HDFS [tpch.orders o]
|     partitions=1/1 files=1 size=162.56MB
|     predicates: o.o_custkey = 10
|     runtime filters: RF000 -> o.o_custkey
|     row-size=16B cardinality=15
|
02:SCAN HDFS [tpch.lineitem i]
   partitions=1/1 files=1 size=718.94MB
   runtime filters: RF002 -> i.l_orderkey
   row-size=12B cardinality=6.00M
====
# Correlated filter on two columns
# |join| = Ave. line items per customer
# |lineitem| / |o.orderkey| = 6M / 1.5M = 4
select c.c_name, o.o_orderkey, i.l_linenumber
from tpch.customer c,
     tpch.orders o,
     tpch.lineitem i
where c.c_custkey = o.o_custkey
  and o.o_orderkey = i.l_orderkey
  and o.o_orderkey = 10
---- PLAN
PLAN-ROOT SINK
|
04:HASH JOIN [INNER JOIN]
|  hash predicates: o.o_orderkey = i.l_orderkey
|  runtime filters: RF000 <- i.l_orderkey
|  row-size=66B cardinality=4
|
|--02:SCAN HDFS [tpch.lineitem i]
|     partitions=1/1 files=1 size=718.94MB
|     predicates: i.l_orderkey = 10
|     row-size=12B cardinality=4
|
03:HASH JOIN [INNER JOIN]
|  hash predicates: c.c_custkey = o.o_custkey
|  runtime filters: RF002 <- o.o_custkey
|  row-size=54B cardinality=1
|
|--01:SCAN HDFS [tpch.orders o]
|     partitions=1/1 files=1 size=162.56MB
|     predicates: o.o_orderkey = 10
|     runtime filters: RF000 -> o.o_orderkey
|     row-size=16B cardinality=1
|
00:SCAN HDFS [tpch.customer c]
   partitions=1/1 files=1 size=23.08MB
   runtime filters: RF002 -> c.c_custkey
   row-size=38B cardinality=150.00K
====
# Correlated filter on two pairs of columns
# |join| = Ave. line items per customer
# |lineitem| / |o.orderkey| = 6M / 1.5M = 4
# Bug: wrong join plan, expected (lineitem >< order) >< customer
select c.c_name, o.o_orderkey, i.l_linenumber
from tpch.customer c,
     tpch.orders o,
     tpch.lineitem i
where c.c_custkey = o.o_custkey
  and o.o_orderkey = i.l_orderkey
  and o.o_orderkey = 10
  and c.c_custkey = 20
---- PLAN
PLAN-ROOT SINK
|
04:HASH JOIN [INNER JOIN]
|  hash predicates: c.c_custkey = o.o_custkey
|  runtime filters: RF000 <- o.o_custkey
|  row-size=66B cardinality=1
|
|--03:HASH JOIN [INNER JOIN]
|  |  hash predicates: i.l_orderkey = o.o_orderkey
|  |  runtime filters: RF002 <- o.o_orderkey
|  |  row-size=28B cardinality=1
|  |
|  |--01:SCAN HDFS [tpch.orders o]
|  |     partitions=1/1 files=1 size=162.56MB
|  |     predicates: o.o_orderkey = 10, o.o_custkey = 20
|  |     row-size=16B cardinality=1
|  |
|  02:SCAN HDFS [tpch.lineitem i]
|     partitions=1/1 files=1 size=718.94MB
|     predicates: i.l_orderkey = 10
|     runtime filters: RF002 -> i.l_orderkey
|     row-size=12B cardinality=4
|
00:SCAN HDFS [tpch.customer c]
   partitions=1/1 files=1 size=23.08MB
   predicates: c.c_custkey = 20
   runtime filters: RF000 -> c.c_custkey
   row-size=38B cardinality=1
====