AHeise commented on code in PR #29385:
URL: https://github.com/apache/flink/pull/29385#discussion_r4194636691
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flink-table/flink-table-planner/src/test/resources/restore-tests/stream-exec-table-source-scan_2/table-source-scan-filter-pushdown-on-collection-elements/plan/table-source-scan-filter-pushdown-on-collection-elements.json:
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@@ -0,0 +1,163 @@
+{
+ "flinkVersion" : "2.4",
+ "nodes" : [ {
+ "id" : 1,
+ "type" : "stream-exec-table-source-scan_2",
+ "scanTableSource" : {
+ "table" : {
+ "identifier" : "`default_catalog`.`default_database`.`source_t`",
+ "resolvedTable" : {
+ "schema" : {
+ "columns" : [ {
+ "name" : "a",
+ "dataType" : "INT"
+ }, {
+ "name" : "arr",
+ "dataType" : "ARRAY<INT>"
+ }, {
+ "name" : "m",
+ "dataType" : "MAP<VARCHAR(2147483647), INT>"
+ }, {
+ "name" : "v",
+ "dataType" : "VARIANT"
+ } ]
+ }
+ }
+ },
+ "abilities" : [ {
+ "type" : "FilterPushDown",
+ "predicates" : [ {
+ "kind" : "CALL",
+ "syntax" : "BINARY",
+ "internalName" : "$>$1",
+ "operands" : [ {
+ "kind" : "CALL",
+ "syntax" : "SPECIAL",
+ "internalName" : "$ITEM$1",
+ "operands" : [ {
+ "kind" : "INPUT_REF",
+ "inputIndex" : 1,
+ "type" : "ARRAY<INT>"
+ }, {
+ "kind" : "LITERAL",
+ "value" : 1,
+ "type" : "INT NOT NULL"
+ } ],
+ "type" : "INT"
+ }, {
+ "kind" : "LITERAL",
+ "value" : 1,
+ "type" : "INT NOT NULL"
+ } ],
+ "type" : "BOOLEAN"
+ }, {
+ "kind" : "CALL",
+ "syntax" : "BINARY",
+ "internalName" : "$>$1",
+ "operands" : [ {
+ "kind" : "CALL",
+ "syntax" : "SPECIAL",
+ "internalName" : "$ITEM$1",
+ "operands" : [ {
+ "kind" : "INPUT_REF",
+ "inputIndex" : 2,
+ "type" : "MAP<VARCHAR(2147483647), INT>"
+ }, {
+ "kind" : "LITERAL",
+ "value" : "k",
+ "type" : "CHAR(1) NOT NULL"
+ } ],
+ "type" : "INT"
+ }, {
+ "kind" : "LITERAL",
+ "value" : 1,
+ "type" : "INT NOT NULL"
+ } ],
+ "type" : "BOOLEAN"
+ }, {
+ "kind" : "CALL",
+ "syntax" : "BINARY",
+ "internalName" : "$>$1",
+ "operands" : [ {
+ "kind" : "CALL",
+ "syntax" : "SPECIAL",
+ "internalName" : "$CAST$1",
+ "operands" : [ {
+ "kind" : "CALL",
+ "syntax" : "SPECIAL",
+ "internalName" : "$ITEM$1",
+ "operands" : [ {
+ "kind" : "INPUT_REF",
+ "inputIndex" : 3,
+ "type" : "VARIANT"
+ }, {
+ "kind" : "LITERAL",
+ "value" : "k",
+ "type" : "CHAR(1) NOT NULL"
+ } ],
+ "type" : "VARIANT"
+ } ],
+ "type" : "INT"
+ }, {
+ "kind" : "LITERAL",
+ "value" : 1,
+ "type" : "INT NOT NULL"
+ } ],
+ "type" : "BOOLEAN"
+ } ]
+ }, {
+ "type" : "ProjectPushDown",
+ "projectedFields" : [ [ 0 ] ],
+ "producedType" : "ROW<`a` INT> NOT NULL"
+ }, {
+ "type" : "ReadingMetadata",
+ "metadataKeys" : [ ],
Review Comment:
Yes, looks like we generate such an empty step for all sources that _may_
read metadata. If we drop that in a follow up ticket, we need to regenerate
lots of plans :/.
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