diff --git a/datafusion/CHANGELOG.md b/datafusion/CHANGELOG.md
index 5b919a1f21d7..38fccecb8707 100644
--- a/datafusion/CHANGELOG.md
+++ b/datafusion/CHANGELOG.md
@@ -21,101 +21,144 @@
 
 ## [20.0.0](https://github.com/apache/arrow-datafusion/tree/20.0.0) (2023-03-10)
 
-**Merged PRs**
-
-Note that the changelog generator is failing due to https://github.com/apache/arrow-datafusion/issues/5549 so
-the changelog for this release was produced manually by running `git log --oneline 19.0.0..main` and only shows
-merged PRs.
-
-- 8c34ca4fa (origin/main, main) Add UserDefinedLogicalNodeCore (#5521)
-- 7f84503bb revert accidently deleted size code in count_distinct (#5533)
-- 6a8c4a601 fix: return schema of ExtensionPlan instead of its children's (#5514)
-- 55c7c4d8e Minor: Move `ObjectStoreRegistry` to datafusion_execution crate (#5478)
-- 07b07d52f Add dbbenchmark URL to db-benchmark readme (#5503)
-- 9878ee011 minor: fix clippy problem in new version. (#5532)
-- 8a1cb7e3c fixed hash_join tests after passing boolean by value (#5531)
-- f5d23ff58 memory limited hash join (#5490)
-- ff013e245 minor: improve error style (#5510)
-- e46924d80 feat: add `arrow_cast` function to support supports arbitrary arrow types (#5166)
-- 84530a2f5 build(deps): update sqlparser requirement from 0.30 to 0.32 w/ API update (#5457)
-- 8a1b13390 Allow setting config extensions for TaskContext (#5497)
-- 0ead640e8 Minor: Improve docs for UserDefinedLogicalNode `dyn_eq` and `dyn_hash` (#5515)
-- 89ca58326 feat: interval add timestamp (#5491)
-- 9e32de344 Pass booleans by value instead of by reference (#5487)
-- deeaa5632 Minor: Move TableProviderFactories up out of RuntimeEnv and into SessionState (#5477)
-- 50e9d78da feat: `ParquetExec` predicate preservation (#5495)
-- d7b221213 feat: add optimization rules for bitwise operations (#5423)
-- 928662bb1 chore: Remove references from SessionState from physical_plan (#5455)
-- 8d8b765f4 Implement `Debug` for `ExecutionProps` and `VarProvider` (#5489)
-- a6f4a7719 feat: Support bitwise operations for unsigned integer types (#5476)
-- 99ef98931 Apply workaround for #5444 to DataFrame::describe (#5468)
-- d0bd28eef feat: eliminate the duplicated sort keys in Order By clause (#5462)
-- 21e33a3d1 Propagate timezone to created arrays (#5481)
-- 978ec2dc8 refactor: make GeometricMean not to have update and merge (#5469)
-- c56b94765 feat: add name() method to UserDefinedLogicalNode (#5450)
-- eb9541380 Comment out description fields in issue templates (#5482)
-- c37ddf72e feat: express unsigned literal in substrait (#5448)
-- 53a638ef3 fix: build union schema with child has same column name but qualifier is different (#5452)
-- 8d195a8c0 refactor: make sum_distinct not to have update and merge (#5474)
-- 132ae42f4 Fix decimal dyn scalar op (#5465)
-- e9852074b feat: `extensions_options` macro (#5442)
-- ac618f034 enable hash joins on FixedSizeBinary columns (#5461)
-- 8de7ea45e Fix is_distinct from for float NaN values (#5446)
-- 61fc51446 Implement/fix Eq and Hash for Expr and LogicalPlan (#5421)
-- be6efbc93 [feat]:fast check has column (#5328)
-- 1455b025c Parquet sorting benchmark (#5433)
-- d11820aa2 refactor count_distinct to not to have update and merge (#5408)
-- ddd64e7ed build(deps): update zstd requirement from 0.11 to 0.12 (#5458)
-- db4610e1d Upgrade bytes to 1.4 (#5460)
-- 49473d68b add std,median result to describe method (#5445)
-- a95e0ec2f minor: Port more window tests to sqlogictests  (#5434)
-- f68214dc6 Use compute_op_dyn_scalar for datatime (#5315)
-- a4b47d8c8 add a unit test that cover cast bug. (#5443)
-- 17b2f11b5 create new `datafusion-execution` crate, start splitting code out (#5432)
-- f9f40bf70 minor: fix clippy in nightly. (#5440)
-- 3c1e4c0fd Support for Sliding Windows Joins with Symmetric Hash Join (SHJ) (#5322)
-- 03fbf9fec refactor: ParquetExec logical expr. => phys. expr. (#5419)
-- c4b895822 Update README.md fix [DataFusion] links (#5438)
-- 793feda23 add mean result for describe method (#5435)
-- eef046441 add expr_fn::median (#5437)
-- d076ab3b2 Bug/union wrong casting (#5342)
-- 0000d4fce reimplement `push_down_projection` and `prune_column`. (#4465)
-- 25b4f673d Add (#5409)
-- d9669841c fix nested loop join with literal join filter (#5431)
-- 96aa2a677 add a describe method on DataFrame like Polars (#5226)
-- ea3b965dd Memory reservation & metrics for cross join (#5339)
-- 20d08ab1f Optimize count_distinct.size (#5377)
-- c477fc0ca Fix filter pushdown for extension plans (#5425)
-- c676d1026 Also push down all filters in TableProvider (#5420)
-- 06fecacb3 Update arrow 34 (#5375)
-- 411807609 Parquet limit pushdown (#5404) (#5416)
-- 58cd1bf0b Move file format config.rs to live with the rest of the datasource code (#5406)
-- 8202a395a Support Zstd compressed files (#5397)
-- 5ffa8d78f Add example of catalog API usage (#5291) (#5326)
-- a7a824ad9 Add support for protobuf serialisation of Arrow Map type (#5359)
-- cb09142c7 minor: port window tests to slt (part 2) (#5399)
-- 69503ea0f fix(docs): fix typos (#5403)
-- fad360df0 rebase (#5367)
-- 38185cacd enhance: remove more projection. (#5402)
-- 0b77ec27c refactor `push_down_filter` to fix dead-loop and use optimizer_recurse. (#5337)
-- 8b92b9b6c feat: add eliminate_unnecessary_projection rule (#5366)
-- 645428f59 minor: support forgotten large_utf8 (#5393)
-- 248d6fc1b Minor: add tests for subquery to join (#5363)
-- 85ed38673 bugfix: fix master `bors` problem. (#5395)
-- a870e460d feat: rule ReplaceDistinctWithAggregate (#5354)
-- 4d4c5678e chore: add known project ZincObserve (#5376)
-- 1841736d9 refactor: parquet pruning simplifications (#5386)
-- 722490121 Optimization of the function "intersect" (#5388)
-- d64076b46 docs: clarify spark (#5391)
-- 47bdda60b UDF zero params #5378 (#5380)
-- 32a238c50 Added tests for "like_for_type_coercion" and "test_type_coercion_rewrite" (#5389)
-- 9fd6efa51 minor: make table resolution an independent function ... (#5373)
-- 05d8a2527 minor: port predicates tests to sqllogictests (#5374)
-- 49237a21a Bug fix: Window frame range value outside the type range (#5384)
-- d6ef46374 Fixed small typos in files of the optimizer (#5356)
-- cef119da9 fix: misc phys. expression display bugs (#5387)
-- ac33ebc8f Prepare for 19.0.0 release (#5381)
-- 1309267e7 minor: disable tpcds-q41 due to not support decorrelate disjunction subquery. (#5369)
+[Full Changelog](https://github.com/apache/arrow-datafusion/compare/19.0.0...20.0.0-rc1)
+
+**Breaking changes:**
+
+- Minor: Move TableProviderFactories up out of `RuntimeEnv` and into `SessionState` [#5477](https://github.com/apache/arrow-datafusion/pull/5477) (alamb)
+- chore: Remove references from SessionState from physical_plan [#5455](https://github.com/apache/arrow-datafusion/pull/5455) (alamb)
+- Implement `Debug` for `ExecutionProps` and `VarProvider` [#5489](https://github.com/apache/arrow-datafusion/pull/5489) (alamb)
+
+**Implemented enhancements:**
+
+- Add UserDefinedLogicalNodeCore [#5521](https://github.com/apache/arrow-datafusion/pull/5521) (mslapek)
+- feat: add `arrow_cast` function to support supports arbitrary arrow types [#5166](https://github.com/apache/arrow-datafusion/pull/5166) (alamb)
+- feat: interval add timestamp [#5491](https://github.com/apache/arrow-datafusion/pull/5491) (Weijun-H)
+- feat: `ParquetExec` predicate preservation [#5495](https://github.com/apache/arrow-datafusion/pull/5495) (crepererum)
+- feat: add optimization rules for bitwise operations [#5423](https://github.com/apache/arrow-datafusion/pull/5423) (izveigor)
+- feat: Support bitwise operations for unsigned integer types [#5476](https://github.com/apache/arrow-datafusion/pull/5476) (izveigor)
+- feat: eliminate the duplicated sort keys in Order By clause [#5462](https://github.com/apache/arrow-datafusion/pull/5462) (jackwener)
+- feat: add name() method to UserDefinedLogicalNode [#5450](https://github.com/apache/arrow-datafusion/pull/5450) (waynexia)
+- feat: express unsigned literal in substrait [#5448](https://github.com/apache/arrow-datafusion/pull/5448) (waynexia)
+- feat: `extensions_options` macro [#5442](https://github.com/apache/arrow-datafusion/pull/5442) (crepererum)
+- [feat]:fast check has column [#5328](https://github.com/apache/arrow-datafusion/pull/5328) (suxiaogang223)
+- feat: eliminate unnecessary projection. [#5366](https://github.com/apache/arrow-datafusion/pull/5366) (jackwener)
+
+**Fixed bugs:**
+
+- revert accidently deleted size code in count_distinct [#5533](https://github.com/apache/arrow-datafusion/pull/5533) (comphead)
+- fix: return schema of ExtensionPlan instead of its children's [#5514](https://github.com/apache/arrow-datafusion/pull/5514) (waynexia)
+- fix: logical merge conflict -- hash_join tests with passing boolean by value [#5531](https://github.com/apache/arrow-datafusion/pull/5531) (korowa)
+- fix: build union schema with child has same column name but qualifier… [#5452](https://github.com/apache/arrow-datafusion/pull/5452) (yukkit)
+- Fix is_distinct from for float NaN values [#5446](https://github.com/apache/arrow-datafusion/pull/5446) (comphead)
+- Bug/union wrong casting [#5342](https://github.com/apache/arrow-datafusion/pull/5342) (berkaysynnada)
+- fix nested loop join with literal join filter [#5431](https://github.com/apache/arrow-datafusion/pull/5431) (ygf11)
+- Fix filter pushdown for extension plans [#5425](https://github.com/apache/arrow-datafusion/pull/5425) (thinkharderdev)
+- Bug fix: Window frame range value outside the type range [#5384](https://github.com/apache/arrow-datafusion/pull/5384) (mustafasrepo)
+- fix: misc phys. expression display bugs [#5387](https://github.com/apache/arrow-datafusion/pull/5387) (crepererum)
+
+**Documentation updates:**
+
+- Minor: Improve docs for UserDefinedLogicalNode `dyn_eq` and `dyn_hash` [#5515](https://github.com/apache/arrow-datafusion/pull/5515) (alamb)
+- chore: add known project ZincObserve [#5376](https://github.com/apache/arrow-datafusion/pull/5376) (hengfeiyang)
+- docs: clarify spark [#5391](https://github.com/apache/arrow-datafusion/pull/5391) (hyoklee)
+
+**Merged pull requests:**
+
+- Manual changelog for 20.0.0 [#5551](https://github.com/apache/arrow-datafusion/pull/5551) (andygrove)
+- Prepare for 20.0.0 release [Part 1] [#5539](https://github.com/apache/arrow-datafusion/pull/5539) (andygrove)
+- chore: deduplicate workspace fields in Cargo.toml [#5519](https://github.com/apache/arrow-datafusion/pull/5519) (waynexia)
+- Add necessary features to optimizer [#5540](https://github.com/apache/arrow-datafusion/pull/5540) (viirya)
+- Minor: add the concise way for matching numerics [#5537](https://github.com/apache/arrow-datafusion/pull/5537) (izveigor)
+- Add UserDefinedLogicalNodeCore [#5521](https://github.com/apache/arrow-datafusion/pull/5521) (mslapek)
+- revert accidently deleted size code in count_distinct [#5533](https://github.com/apache/arrow-datafusion/pull/5533) (comphead)
+- fix: return schema of ExtensionPlan instead of its children's [#5514](https://github.com/apache/arrow-datafusion/pull/5514) (waynexia)
+- Minor: Move `ObjectStoreRegistry` to datafusion_execution crate [#5478](https://github.com/apache/arrow-datafusion/pull/5478) (alamb)
+- Minor: Add db-benchmark URL to db-benchmark readme [#5503](https://github.com/apache/arrow-datafusion/pull/5503) (alamb)
+- minor: fix clippy problem in new version. [#5532](https://github.com/apache/arrow-datafusion/pull/5532) (jackwener)
+- fix: logical merge conflict -- hash_join tests with passing boolean by value [#5531](https://github.com/apache/arrow-datafusion/pull/5531) (korowa)
+- Memory limited hash join [#5490](https://github.com/apache/arrow-datafusion/pull/5490) (korowa)
+- minor: improve error style [#5510](https://github.com/apache/arrow-datafusion/pull/5510) (alamb)
+- feat: add `arrow_cast` function to support supports arbitrary arrow types [#5166](https://github.com/apache/arrow-datafusion/pull/5166) (alamb)
+- build(deps): update sqlparser requirement from 0.30 to 0.32 w/ API update [#5457](https://github.com/apache/arrow-datafusion/pull/5457) (alamb)
+- Allow setting config extensions for TaskContext [#5497](https://github.com/apache/arrow-datafusion/pull/5497) (mpurins-coralogix)
+- Minor: Improve docs for UserDefinedLogicalNode `dyn_eq` and `dyn_hash` [#5515](https://github.com/apache/arrow-datafusion/pull/5515) (alamb)
+- feat: interval add timestamp [#5491](https://github.com/apache/arrow-datafusion/pull/5491) (Weijun-H)
+- Pass booleans by value instead of by reference [#5487](https://github.com/apache/arrow-datafusion/pull/5487) (maxburke)
+- Minor: Move TableProviderFactories up out of `RuntimeEnv` and into `SessionState` [#5477](https://github.com/apache/arrow-datafusion/pull/5477) (alamb)
+- feat: `ParquetExec` predicate preservation [#5495](https://github.com/apache/arrow-datafusion/pull/5495) (crepererum)
+- feat: add optimization rules for bitwise operations [#5423](https://github.com/apache/arrow-datafusion/pull/5423) (izveigor)
+- chore: Remove references from SessionState from physical_plan [#5455](https://github.com/apache/arrow-datafusion/pull/5455) (alamb)
+- Implement `Debug` for `ExecutionProps` and `VarProvider` [#5489](https://github.com/apache/arrow-datafusion/pull/5489) (alamb)
+- feat: Support bitwise operations for unsigned integer types [#5476](https://github.com/apache/arrow-datafusion/pull/5476) (izveigor)
+- Apply workaround for #5444 to `DataFrame::describe` [#5468](https://github.com/apache/arrow-datafusion/pull/5468) (jiangzhx)
+- feat: eliminate the duplicated sort keys in Order By clause [#5462](https://github.com/apache/arrow-datafusion/pull/5462) (jackwener)
+- Propagate timezone to created arrays [#5481](https://github.com/apache/arrow-datafusion/pull/5481) (maxburke)
+- refactor: make GeometricMean not to have update and merge [#5469](https://github.com/apache/arrow-datafusion/pull/5469) (Weijun-H)
+- feat: add name() method to UserDefinedLogicalNode [#5450](https://github.com/apache/arrow-datafusion/pull/5450) (waynexia)
+- Comment out description text in issue templates [#5482](https://github.com/apache/arrow-datafusion/pull/5482) (Jefffrey)
+- feat: express unsigned literal in substrait [#5448](https://github.com/apache/arrow-datafusion/pull/5448) (waynexia)
+- fix: build union schema with child has same column name but qualifier… [#5452](https://github.com/apache/arrow-datafusion/pull/5452) (yukkit)
+- refactor: make sum_distinct not to have update and merge [#5474](https://github.com/apache/arrow-datafusion/pull/5474) (Weijun-H)
+- `compute_decimal_op_dyn_scalar` should not cast lhs array to decimal array [#5465](https://github.com/apache/arrow-datafusion/pull/5465) (viirya)
+- feat: `extensions_options` macro [#5442](https://github.com/apache/arrow-datafusion/pull/5442) (crepererum)
+- Enable hash joins on FixedSizeBinary columns [#5461](https://github.com/apache/arrow-datafusion/pull/5461) (maxburke)
+- Fix is_distinct from for float NaN values [#5446](https://github.com/apache/arrow-datafusion/pull/5446) (comphead)
+- Implement/fix Eq and Hash for Expr and LogicalPlan [#5421](https://github.com/apache/arrow-datafusion/pull/5421) (mslapek)
+- [feat]:fast check has column [#5328](https://github.com/apache/arrow-datafusion/pull/5328) (suxiaogang223)
+- Parquet sorting benchmark [#5433](https://github.com/apache/arrow-datafusion/pull/5433) (jaylmiller)
+- refactor count_distinct to not to have update and merge [#5408](https://github.com/apache/arrow-datafusion/pull/5408) (Weijun-H)
+- build(deps): update zstd requirement from 0.11 to 0.12 [#5458](https://github.com/apache/arrow-datafusion/pull/5458) (alamb)
+- Upgrade bytes to 1.4 [#5460](https://github.com/apache/arrow-datafusion/pull/5460) (viirya)
+- add std,median result to describe method [#5445](https://github.com/apache/arrow-datafusion/pull/5445) (jiangzhx)
+- minor: Port more window tests to sqlogictests  [#5434](https://github.com/apache/arrow-datafusion/pull/5434) (alamb)
+- Use compute_op_dyn_scalar for datatime [#5315](https://github.com/apache/arrow-datafusion/pull/5315) (viirya)
+- add a unit test that cover cast bug. [#5443](https://github.com/apache/arrow-datafusion/pull/5443) (jackwener)
+- create new `datafusion-execution` crate, start splitting code out [#5432](https://github.com/apache/arrow-datafusion/pull/5432) (alamb)
+- minor: fix clippy in nightly. [#5440](https://github.com/apache/arrow-datafusion/pull/5440) (jackwener)
+- Support for Sliding Windows Joins with Symmetric Hash Join (SHJ) [#5322](https://github.com/apache/arrow-datafusion/pull/5322) (metesynnada)
+- refactor: ParquetExec logical expr. => phys. expr. [#5419](https://github.com/apache/arrow-datafusion/pull/5419) (crepererum)
+- Update README.md fix [DataFusion] links [#5438](https://github.com/apache/arrow-datafusion/pull/5438) (jiangzhx)
+- add mean result for describe method [#5435](https://github.com/apache/arrow-datafusion/pull/5435) (jiangzhx)
+- add expr_fn::median [#5437](https://github.com/apache/arrow-datafusion/pull/5437) (jiangzhx)
+- Bug/union wrong casting [#5342](https://github.com/apache/arrow-datafusion/pull/5342) (berkaysynnada)
+- reimplement `push_down_projection` and `prune_column`. [#4465](https://github.com/apache/arrow-datafusion/pull/4465) (jackwener)
+- Add `expr_fn::stddev`  [#5409](https://github.com/apache/arrow-datafusion/pull/5409) (jiangzhx)
+- fix nested loop join with literal join filter [#5431](https://github.com/apache/arrow-datafusion/pull/5431) (ygf11)
+- add a describe method on DataFrame like Polars [#5226](https://github.com/apache/arrow-datafusion/pull/5226) (jiangzhx)
+- Memory reservation & metrics for cross join [#5339](https://github.com/apache/arrow-datafusion/pull/5339) (korowa)
+- Optimize count_distinct.size [#5377](https://github.com/apache/arrow-datafusion/pull/5377) (comphead)
+- Fix filter pushdown for extension plans [#5425](https://github.com/apache/arrow-datafusion/pull/5425) (thinkharderdev)
+- Also push down all filters in TableProvider [#5420](https://github.com/apache/arrow-datafusion/pull/5420) (avantgardnerio)
+- Update arrow 34 [#5375](https://github.com/apache/arrow-datafusion/pull/5375) (tustvold)
+- Parquet limit pushdown (#5404) [#5416](https://github.com/apache/arrow-datafusion/pull/5416) (tustvold)
+- Move file format config.rs to live with the rest of the datasource code [#5406](https://github.com/apache/arrow-datafusion/pull/5406) (alamb)
+- Support Zstd compressed files [#5397](https://github.com/apache/arrow-datafusion/pull/5397) (dennybritz)
+- Add example of catalog API usage (#5291) [#5326](https://github.com/apache/arrow-datafusion/pull/5326) (jaylmiller)
+- Add support for protobuf serialisation of Arrow Map type [#5359](https://github.com/apache/arrow-datafusion/pull/5359) (ahmedriza)
+- minor: port window tests to slt (part 2) [#5399](https://github.com/apache/arrow-datafusion/pull/5399) (alamb)
+- fix(docs): fix typos [#5403](https://github.com/apache/arrow-datafusion/pull/5403) (WenyXu)
+- Try to push down full filter before break-up [#5367](https://github.com/apache/arrow-datafusion/pull/5367) (avantgardnerio)
+- enhance: remove more projection. [#5402](https://github.com/apache/arrow-datafusion/pull/5402) (jackwener)
+- refactor `push_down_filter` to fix dead-loop and use optimizer_recurse. [#5337](https://github.com/apache/arrow-datafusion/pull/5337) (jackwener)
+- feat: eliminate unnecessary projection. [#5366](https://github.com/apache/arrow-datafusion/pull/5366) (jackwener)
+- minor: add forgotten large_utf8 [#5393](https://github.com/apache/arrow-datafusion/pull/5393) (jackwener)
+- Minor: add tests for subquery to join [#5363](https://github.com/apache/arrow-datafusion/pull/5363) (ygf11)
+- bugfix: fix master `bors` problem. [#5395](https://github.com/apache/arrow-datafusion/pull/5395) (jackwener)
+- Rule ReplaceDistinctWithAggregate [#5354](https://github.com/apache/arrow-datafusion/pull/5354) (mingmwang)
+- chore: add known project ZincObserve [#5376](https://github.com/apache/arrow-datafusion/pull/5376) (hengfeiyang)
+- refactor: parquet pruning simplifications [#5386](https://github.com/apache/arrow-datafusion/pull/5386) (crepererum)
+- Minor: intersect expressions optimization [#5388](https://github.com/apache/arrow-datafusion/pull/5388) (izveigor)
+- docs: clarify spark [#5391](https://github.com/apache/arrow-datafusion/pull/5391) (hyoklee)
+- UDF zero params #5378 [#5380](https://github.com/apache/arrow-datafusion/pull/5380) (jaylmiller)
+- Minor: added some tests for coercion type [#5389](https://github.com/apache/arrow-datafusion/pull/5389) (izveigor)
+- minor: make table resolution an independent function ... [#5373](https://github.com/apache/arrow-datafusion/pull/5373) (MichaelScofield)
+- minor: port predicates tests to sqllogictests [#5374](https://github.com/apache/arrow-datafusion/pull/5374) (jackwener)
+- Bug fix: Window frame range value outside the type range [#5384](https://github.com/apache/arrow-datafusion/pull/5384) (mustafasrepo)
+- Fixed small typos in files of the optimizer [#5356](https://github.com/apache/arrow-datafusion/pull/5356) (izveigor)
+- fix: misc phys. expression display bugs [#5387](https://github.com/apache/arrow-datafusion/pull/5387) (crepererum)
+- Prepare for 19.0.0 release [#5381](https://github.com/apache/arrow-datafusion/pull/5381) (andygrove)
+- minor: disable tpcds-q41 due to not support decorrelate disjunction subquery [#5369](https://github.com/apache/arrow-datafusion/pull/5369) (jackwener)
 
 ## [19.0.0](https://github.com/apache/arrow-datafusion/tree/19.0.0) (2023-02-24)