diff --git a/concourse/build_with_codegen.yml b/concourse/build_with_codegen.yml
deleted file mode 100644
index dc2e337f88ff3f73a5ac5840191b6174810f35d3..0000000000000000000000000000000000000000
--- a/concourse/build_with_codegen.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-platform: linux
-image: docker:///pivotaldata/gpdb-devel-gcc5#centos6
-inputs:
-  - name: gpdb_src
-outputs:
-  - name: bin_gpdb
-run:
-  path: /bin/bash
-  args:
-    - -l  # login shell to source gcc 5 path
-    - -c
-    - gpdb_src/concourse/scripts/build_gpdb.py --mode=codegen --output_dir=bin_gpdb/install
diff --git a/concourse/build_with_orca_and_codegen.yml b/concourse/build_with_orca_and_codegen.yml
deleted file mode 100644
index d9ce2f87c98c5d9bf106d090fe2c9060cbe27fdc..0000000000000000000000000000000000000000
--- a/concourse/build_with_orca_and_codegen.yml
+++ /dev/null
@@ -1,15 +0,0 @@
-platform: linux
-image: docker:///pivotaldata/gpdb-devel-gcc5#centos6
-inputs:
-  - name: bin_orca
-  - name: bin_gpos
-  - name: bin_xerces
-  - name: gpdb_src
-outputs:
-  - name: bin_gpdb
-run:
-  path: /bin/bash
-  args:
-    - -l  # login shell to source gcc 5 path
-    - -c
-    - gpdb_src/concourse/scripts/build_gpdb.py --mode=orca_codegen --output_dir=bin_gpdb/install bin_orca bin_gpos bin_xerces
diff --git a/concourse/cpplint.yml b/concourse/cpplint.yml
deleted file mode 100644
index cd6cdc72e341f4a99f5f922eea82fa5590304a2f..0000000000000000000000000000000000000000
--- a/concourse/cpplint.yml
+++ /dev/null
@@ -1,10 +0,0 @@
-platform: linux
-image: docker:///pivotaldata/gpdb-devel-gcc5#centos6
-inputs:
-  - name: gpdb_src
-run:
-  path: /bin/bash
-  args:
-    - -l
-    - -c
-    - find gpdb_src/src/backend/codegen/ -name '*.cc' -or -name '*.h' | xargs gpdb_src/concourse/scripts/cpplint.py --filter=-runtime/int,-build/include
diff --git a/concourse/dev_template_pipeline.yml b/concourse/dev_template_pipeline.yml
deleted file mode 100644
index 15a0c5c33a7a64cd6ab6f64d3d9dc61cb7e5b4ce..0000000000000000000000000000000000000000
--- a/concourse/dev_template_pipeline.yml
+++ /dev/null
@@ -1,175 +0,0 @@
-groups:
-- name: all
-  jobs:
-  - gp_xerces
-  - gpos_centos6_release
-  - orca_centos6_release
-  - build_gpdb_centos6
-  - gpdb_icg
-resources:
-- name: bin_gpdb_with_orca_centos6
-  type: s3
-  source:
-    access_key_id: {{aws-access-key-id}}
-    bucket: gporca-concourse-bucket
-    region_name: us-west-2
-    secret_access_key: {{aws-secret-access-key}}
-    versioned_file: bin_gpdb_with_orca_centos6.tar.gz
-- name: gpos_src
-  type: git
-  source:
-    branch: master
-    private_key: {{gpdb_deploy_key}}
-    uri: git@github.com:greenplum-db/gpos.git
-- name: orca_src
-  type: git
-  source:
-    branch: master
-    private_key: {{gpdb_deploy_key}}
-    uri: git@github.com:greenplum-db/gporca.git
-- name: gpdb_src
-  type: git
-  source:
-    branch: master
-    private_key: {{gpdb_deploy_key}}
-    uri: git@github.com:greenplum-db/gpdb.git
-- name: xerces_patch
-  type: git
-  source:
-    branch: master
-    paths:
-    - patches/xerces-c-gpdb.patch
-    - concourse/xerces-c
-    - concourse/package_tarball.bash
-    private_key: {{gpdb_deploy_key}}
-    uri: git@github.com:greenplum-db/gporca.git
-- name: bin_xerces_centos6
-  type: s3
-  source:
-    access_key_id: {{aws-access-key-id}}
-    bucket: gporca-concourse-bucket
-    region_name: us-west-2
-    secret_access_key: {{aws-secret-access-key}}
-    versioned_file: bin_xerces_centos6.tar.gz
-- name: bin_gpos_centos6_release
-  type: s3
-  source:
-    access_key_id: {{aws-access-key-id}}
-    bucket: gporca-concourse-bucket
-    region_name: us-west-2
-    secret_access_key: {{aws-secret-access-key}}
-    versioned_file: bin_gpos_centos6_release.tar.gz
-- name: bin_orca_centos6_release
-  type: s3
-  source:
-    access_key_id: {{aws-access-key-id}}
-    bucket: gporca-concourse-bucket
-    region_name: us-west-2
-    secret_access_key: {{aws-secret-access-key}}
-    versioned_file: bin_orca_centos6_release.tar.gz
-resource_types: []
-jobs:
-- name: gp_xerces
-  max_in_flight: 2
-  plan:
-  - get: xerces_patch
-    trigger: true
-  - aggregate:
-    - task: build_centos6
-      file: xerces_patch/concourse/xerces-c/build_xerces_centos6.yml
-  - aggregate:
-    - task: package_tarball_centos6
-      file: xerces_patch/concourse/xerces-c/package_tarball_centos6.yml
-  - aggregate:
-    - put: bin_xerces_centos6
-      params:
-        from: package_tarball_centos6/bin_xerces_centos6.tar.gz
-- name: gpos_centos6_release
-  max_in_flight: 2
-  plan:
-  - get: gpos_src
-    trigger: true
-  - task: build_and_test_centos6_release
-    file: gpos_src/concourse/build_centos6_release.yml
-  - task: package_tarball_centos6_release
-    file: gpos_src/concourse/package_tarball_centos6_release.yml
-  - put: bin_gpos_centos6_release
-    params:
-      from: package_tarball_centos6_release/bin_gpos_centos6_release.tar.gz
-- name: orca_centos6_release
-  max_in_flight: 2
-  plan:
-  - get: orca_src
-    trigger: true
-  - get: bin_gpos_centos6_release
-    passed:
-    - gpos_centos6_release
-    trigger: true
-  - get: bin_xerces_centos6
-    passed:
-    - gp_xerces
-    trigger: true
-  - task: build_and_test_centos6_release
-    file: orca_src/concourse/build_and_test_centos6_release.yml
-  - task: package_tarball_centos6_release
-    file: orca_src/concourse/package_tarball_centos6_release.yml
-  - put: bin_orca_centos6_release
-    params:
-      from: package_tarball_centos6_release/bin_orca_centos6_release.tar.gz
-- name: build_gpdb_centos6
-  max_in_flight: 1
-  plan:
-  - aggregate:
-    - get: bin_gpos_centos6_release
-      passed:
-      - gpos_centos6_release
-    - get: bin_orca_centos6_release
-      passed:
-      - orca_centos6_release
-      trigger: true
-    - get: bin_xerces_centos6
-      passed:
-      - gp_xerces
-    - get: gpdb_src
-      params:
-        submodules: none
-  - task: build_with_orca
-    input_mapping:
-      bin_orca: bin_orca_centos6_release
-      bin_gpos: bin_gpos_centos6_release
-      bin_xerces: bin_xerces_centos6
-    file: gpdb_src/concourse/build_with_orca.yml
-  - task: package_tarball_centos6
-    file: gpdb_src/concourse/package_tarball.yml
-  - put: bin_gpdb_with_orca_centos6
-    params:
-      from: package_tarball/bin_gpdb.tar.gz
-- name: gpdb_icg
-  max_in_flight: 1
-  plan:
-  - aggregate:
-    - get: gpdb_src
-      params:
-        submodules: none
-    - get: bin_gpdb_with_orca_centos6
-      passed:
-      - build_gpdb_centos6
-      trigger: true
-    - get: bin_gpos_centos6_release
-      passed:
-      - gpos_centos6_release
-    - get: bin_orca_centos6_release
-      passed:
-      - orca_centos6_release
-    - get: bin_xerces_centos6
-      passed:
-      - gp_xerces
-  - aggregate:
-    - task: test_with_orca
-      input_mapping:
-        bin_orca: bin_orca_centos6_release
-        bin_gpos: bin_gpos_centos6_release
-        bin_xerces: bin_xerces_centos6
-        bin_gpdb: bin_gpdb_with_orca_centos6
-      file: gpdb_src/concourse/test_with_orca.yml
-      timeout: 1h30m
diff --git a/concourse/gpcodegen_pipeline.yml b/concourse/gpcodegen_pipeline.yml
deleted file mode 100644
index cc8a1d3b6d8eb11f7b81976b005b32a1fd8f48ec..0000000000000000000000000000000000000000
--- a/concourse/gpcodegen_pipeline.yml
+++ /dev/null
@@ -1,194 +0,0 @@
-#############
-# RESOURCES #
-#############
-resources:
-- name: gpdb_src
-  type: git
-  source:
-    branch: master
-    paths:
-      - src/backend/codegen/*
-      - src/include/codegen/*
-      - concourse/*
-    uri: https://github.com/greenplum-db/gpdb.git
-
-- name: bin_gpdb_orca
-  type: s3
-  source:
-    access_key_id: {{aws-access-key-id}}
-    bucket: gporca-concourse-bucket
-    region_name: us-west-2
-    secret_access_key: {{aws-secret-access-key}}
-    versioned_file: bin_gpdb_with_orca_and_codegen_centos6.tar.gz
-
-- name: regression_diffs
-  type: s3
-  source:
-    access_key_id: {{aws-access-key-id}}
-    bucket: {{bucket-name}}
-    region_name: {{aws-region}}
-    secret_access_key: {{aws-secret-access-key}}
-    versioned_file: regression.diffs
-- name: regression_out
-  type: s3
-  source:
-    access_key_id: {{aws-access-key-id}}
-    bucket: {{bucket-name}}
-    region_name: {{aws-region}}
-    secret_access_key: {{aws-secret-access-key}}
-    versioned_file: regression.out
-
-- name: bin_xerces
-  type: s3
-  source:
-    access_key_id: {{aws-access-key-id}}
-    bucket: {{bucket-name}}
-    region_name: {{aws-region}}
-    secret_access_key: {{aws-secret-access-key}}
-    regexp: bin_xerces_centos(6).tar.gz
-
-- name: orca
-  type: github-release
-  source:
-    user: greenplum-db
-    repository: gporca
-
-- name: gpos
-  type: github-release
-  source:
-    user: greenplum-db
-    repository: gpos
-
-########
-# JOBS #
-########
-jobs:
-- name: gpdb_icg_planner
-  max_in_flight: 1
-  plan:
-  - aggregate:
-    - get: gpdb_src
-      passed:
-      - build_gpdb_orca
-      params:
-        submodules: none
-    - get: bin_orca
-      resource: orca
-      params:
-        globs:
-        - bin_orca_centos5_release.tar.gz
-      passed:
-      - build_gpdb_orca
-    - get: bin_gpos
-      resource: gpos
-      params:
-        globs:
-        - bin_gpos_centos5_release.tar.gz
-      passed:
-      - build_gpdb_orca
-    - get: bin_xerces
-      passed:
-      - build_gpdb_orca
-    - get: bin_gpdb_orca
-      passed:
-      - build_gpdb_orca
-      trigger: true
-  - task: test_gpdb
-    input_mapping:
-      bin_gpdb: bin_gpdb_orca
-    file: gpdb_src/concourse/test_with_codegen.yml
-    timeout: 1h30m
-    on_failure:
-      aggregate:
-      - put: regression_diffs
-        params:
-          from: icg_output/regression.diffs
-      - put: regression_out
-        params:
-          from: icg_output/regression.out
-
-
-- name: build_gpdb_orca
-  max_in_flight: 1
-  plan:
-  - aggregate:
-    - get: gpdb_src
-      params:
-        submodules: none
-      trigger: true
-    - get: bin_xerces
-    - get: bin_orca
-      resource: orca
-      params:
-        globs:
-        - bin_orca_centos5_release.tar.gz
-    - get: bin_gpos
-      resource: gpos
-      params:
-        globs:
-        - bin_gpos_centos5_release.tar.gz
-
-  - task: build_with_orca_and_codegen
-    file: gpdb_src/concourse/build_with_orca_and_codegen.yml
-    output_mapping: {bin_gpdb: bin_gpdb_orca}
-  - task: package_tarball
-    input_mapping: {bin_gpdb: bin_gpdb_orca}
-    file: gpdb_src/concourse/package_tarball.yml
-  - put: bin_gpdb_orca
-    params:
-      from: package_tarball/bin_gpdb.tar.gz
-
-- name: gpdb_icg_orca
-  max_in_flight: 1
-  plan:
-  - aggregate:
-    - get: gpdb_src
-      passed:
-      - build_gpdb_orca
-      params:
-        submodules: none
-    - get: bin_orca
-      resource: orca
-      params:
-        globs:
-        - bin_orca_centos5_release.tar.gz
-      passed:
-      - build_gpdb_orca
-    - get: bin_gpos
-      resource: gpos
-      params:
-        globs:
-        - bin_gpos_centos5_release.tar.gz
-      passed:
-      - build_gpdb_orca
-    - get: bin_gpdb_orca
-      passed:
-      - build_gpdb_orca
-      trigger: true
-    - get: bin_xerces
-      passed:
-      - build_gpdb_orca
-  - task: test_gpdb
-    input_mapping: {bin_gpdb: bin_gpdb_orca}
-    file: gpdb_src/concourse/test_with_orca_and_codegen.yml
-    timeout: 1h30m
-    on_failure:
-      aggregate:
-      - put: regression_diffs
-        params:
-          from: icg_output/regression.diffs
-      - put: regression_out
-        params:
-          from: icg_output/regression.out
-
-
-- name: cpplint
-  max_in_flight: 3
-  plan:
-  - aggregate:
-    - get: gpdb_src
-      params:
-        submodules: none
-      trigger: true
-  - task: cpplint
-    file: gpdb_src/concourse/cpplint.yml
diff --git a/concourse/scripts/builds/GpcodegenBuild.py b/concourse/scripts/builds/GpcodegenBuild.py
deleted file mode 100755
index 83384098d8a5850bbd13c78cc3592dfda557f556..0000000000000000000000000000000000000000
--- a/concourse/scripts/builds/GpcodegenBuild.py
+++ /dev/null
@@ -1,35 +0,0 @@
-import os
-import subprocess
-import sys
-from GpdbBuildBase import GpdbBuildBase
-
-class GpcodegenBuild(GpdbBuildBase):
-    def __init__(self):
-        pass
-
-    def configure(self):
-        return subprocess.call(' '.join(["./configure",
-                                         "--enable-codegen",
-                                         "--enable-mapreduce",
-                                         "--with-perl",
-                                         "--with-libxml",
-                                         "--with-python",
-                                         "--disable-gpfdist",
-                                         "--prefix=/usr/local/gpdb"]),
-                                        cwd="gpdb_src", shell=True)
-    def icg(self):
-        status = subprocess.call(
-            "printf '\nLD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib\nexport \
-            LD_LIBRARY_PATH' >> /usr/local/gpdb/greenplum_path.sh", shell=True)
-        if status:
-            return status
-        status = subprocess.call([
-            "runuser gpadmin -c \"source /usr/local/gpdb/greenplum_path.sh \
-            && make cluster\""], cwd="gpdb_src/gpAux/gpdemo", shell=True)
-        if status:
-            return status
-        return subprocess.call([
-            "runuser gpadmin -c \"source /usr/local/gpdb/greenplum_path.sh \
-            && source gpAux/gpdemo/gpdemo-env.sh && PGOPTIONS='-c codegen=on' \
-            make installcheck-good\""], cwd="gpdb_src", shell=True)
-    
diff --git a/concourse/test_with_codegen.yml b/concourse/test_with_codegen.yml
deleted file mode 100644
index 7e31209ee921301a13c015265cce912072abfb21..0000000000000000000000000000000000000000
--- a/concourse/test_with_codegen.yml
+++ /dev/null
@@ -1,16 +0,0 @@
-platform: linux
-image: docker:///pivotaldata/gpdb-devel-gcc5#centos6
-inputs:
-  - name: gpdb_src
-  - name: bin_gpdb
-  - name: bin_orca
-  - name: bin_gpos
-  - name: bin_xerces
-outputs:
-  - name: icg_output
-run:
-  path: /bin/bash
-  args:
-    - -l
-    - -c
-    - gpdb_src/concourse/scripts/test_gpdb.py --mode=codegen --gpdb_name=bin_gpdb bin_orca bin_gpos bin_xerces
diff --git a/concourse/test_with_orca_and_codegen.yml b/concourse/test_with_orca_and_codegen.yml
deleted file mode 100644
index 01672223b800fdf8b46bafe09a474c60eeec93a7..0000000000000000000000000000000000000000
--- a/concourse/test_with_orca_and_codegen.yml
+++ /dev/null
@@ -1,17 +0,0 @@
-platform: linux
-image: docker:///pivotaldata/gpdb-devel-gcc5#centos6
-inputs:
-  - name: gpdb_src
-  - name: bin_gpdb
-  - name: bin_orca
-  - name: bin_gpos
-  - name: bin_xerces
-outputs:
-  - name: icg_output
-run:
-  path: /bin/bash
-  args:
-    - -l
-    - -c
-    - gpdb_src/concourse/scripts/test_gpdb.py --mode=orca_codegen --gpdb_name=bin_gpdb --output_dir=bin_gpdb/install bin_orca bin_gpos bin_xerces
-