Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly
Sign up
Appearance settings

Commit 960d74e

Browse files
committed
HHH-19705 Carry array length through to allow fixed size vector type expressions for DB2
1 parent e87dc4f commit 960d74e

File tree

144 files changed

+2581
-403
lines changed

Some content is hidden

Large Commits have some content hidden by default. Use the searchbox below for content that may be hidden.

144 files changed

+2581
-403
lines changed

‎docker_db.sh

Lines changed: 110 additions & 30 deletions
Original file line numberDiff line numberDiff line change
@@ -4,9 +4,17 @@ if command -v docker > /dev/null; then
44
CONTAINER_CLI=$(command -v docker)
55
HEALTCHECK_PATH="{{.State.Health.Status}}"
66
PRIVILEGED_CLI=""
7+
IS_PODMAN=false
8+
if [[ "$(docker version | grep Podman)" == "" ]]; then
9+
IS_DOCKER_RUNTIME=true
10+
else
11+
IS_DOCKER_RUNTIME=false
12+
fi
713
else
814
CONTAINER_CLI=$(command -v podman)
915
HEALTCHECK_PATH="{{.State.Healthcheck.Status}}"
16+
IS_PODMAN=true
17+
IS_DOCKER_RUNTIME=false
1018
# Only use sudo for podman
1119
if command -v sudo > /dev/null; then
1220
PRIVILEGED_CLI="sudo"
@@ -15,6 +23,12 @@ else
1523
fi
1624
fi
1725

26+
if [[ "$(uname -s)" == "Darwin" ]]; then
27+
IS_OSX=true
28+
else
29+
IS_OSX=false
30+
fi
31+
1832
mysql() {
1933
mysql_9_4
2034
}
@@ -292,29 +306,93 @@ db2() {
292306
}
293307

294308
db2_11_5() {
295-
$PRIVILEGED_CLI $CONTAINER_CLI rm -f db2 || true
296-
$PRIVILEGED_CLI $CONTAINER_CLI run --name db2 --privileged -e DB2INSTANCE=orm_test -e DB2INST1_PASSWORD=orm_test -e DBNAME=orm_test -e LICENSE=accept -e AUTOCONFIG=false -e ARCHIVE_LOGS=false -e TO_CREATE_SAMPLEDB=false -e REPODB=false -p 50000:50000 -d ${DB_IMAGE_DB2_11_5:-icr.io/db2_community/db2:11.5.9.0}
309+
CONTAINER_OPTIONS=""
310+
if [[ "$IS_OSX" == "true" ]]; then
311+
# Thanks to Mohamed Asfour https://community.ibm.com/community/user/discussion/db2-luw-115xx-mac-m1-ready#bm017584d2-8d76-42a6-8f76-018dac8e78f2
312+
# This SO post explains what goes wrong on OSX: https://stackoverflow.com/questions/70175677/ibmcom-db2-docker-image-fails-on-m1
313+
# Also, use the $HOME directory as base directory to make volume mounts work on Colima on Mac
314+
db2install=$HOME/db2install.sh
315+
rm -f ${db2install} || true
316+
cat <<'EOF' >${db2install}
317+
#!/bin/bash
318+
find /var/db2_setup -type f -not -path '*/\.*' -exec sed -i "s/su - db2inst1 -c '/su - db2inst1 -c '. .profile \&\& /g" {} +
319+
find /var/db2_setup -type f -not -path '*/\.*' -exec sed -i "s/su - db2inst1 -c \"/su - db2inst1 -c \". .profile \&\& /g" {} +
320+
find /var/db2_setup -type f -not -path '*/\.*' -exec sed -i "s/su - \${DB2INSTANCE?} -c '/su - \${DB2INSTANCE?} -c '. .profile \&\& /g" {} +
321+
find /var/db2_setup -type f -not -path '*/\.*' -exec sed -i "s/su - \${DB2INSTANCE?} -c \"/su - \${DB2INSTANCE?} -c \". .profile \&\& /g" {} +
322+
find /var/db2_setup -type f -not -path '*/\.*' -exec sed -i "s/su - \${instance?} -c '/su - \${instance?} -c '. .profile \&\& /g" {} +
323+
find /var/db2_setup -type f -not -path '*/\.*' -exec sed -i "s/su - \${instance?} -c \"/su - \${instance?} -c \". .profile \&\& /g" {} +
324+
find /var/db2_setup -type f -not -path '*/\.*' -exec sed -i "s/su - \${instance_name?} -c '/su - \${instance_name?} -c '. .profile \&\& /g" {} +
325+
find /var/db2_setup -type f -not -path '*/\.*' -exec sed -i "s/su - \${instance_name?} -c \"/su - \${instance_name?} -c \". .profile \&\& /g" {} +
326+
find /var/db2_setup -type f -not -path '*/\.*' -exec sed -i "s/su - db2inst1 -c \\\\\"/su - db2inst1 -c \\\". .profile \&\& /g" {} +
327+
. /var/db2_setup/lib/setup_db2_instance.sh
328+
EOF
329+
chmod 777 ${db2install}
330+
if [[ "$IS_PODMAN" == "true" ]]; then
331+
CONTAINER_OPTIONS='--platform=linux/amd64 -e IS_OSXFS=true -v '${db2install}':/db2install.sh --entrypoint=["/bin/bash","-c","/db2install.sh"]'
332+
CONTAINER_ARGS=
333+
else
334+
CONTAINER_OPTIONS='--platform=linux/amd64 -e IS_OSXFS=true -v '${db2install}':/db2install.sh --entrypoint=/bin/bash'
335+
CONTAINER_ARGS=" -c /db2install.sh"
336+
fi
337+
if [[ "$IS_PODMAN" == "false" ]]; then
338+
export DOCKER_DEFAULT_PLATFORM=linux/amd64
339+
fi
340+
fi
341+
$CONTAINER_CLI rm -f db2 || true
342+
$CONTAINER_CLI run --name db2 --privileged -e DB2INSTANCE=orm_test -e DB2INST1_PASSWORD=orm_test -e DBNAME=orm_test -e LICENSE=accept -e AUTOCONFIG=false -e ARCHIVE_LOGS=false -e TO_CREATE_SAMPLEDB=false -e REPODB=false -e BLU=false -e ENABLE_ORACLE_COMPATIBILITY=false -e UPDATEAVAIL=NO -e PERSISTENT_HOME=true -e HADR_ENABLED=false -p 50000:50000 $CONTAINER_OPTIONS -d ${DB_IMAGE_DB2_11_5:-icr.io/db2_community/db2:11.5.9.0} $CONTAINER_ARGS
297343
# Give the container some time to start
298344
OUTPUT=
299345
while [[ $OUTPUT != *"INSTANCE"* ]]; do
300346
echo "Waiting for DB2 to start..."
301347
sleep 10
302-
OUTPUT=$($PRIVILEGED_CLI$CONTAINER_CLI logs db2 2>&1)
348+
OUTPUT=$($CONTAINER_CLI logs db2 2>&1)
303349
done
304-
$PRIVILEGED_CLI$CONTAINER_CLI exec -t db2 su - orm_test bash -c ". /database/config/orm_test/sqllib/db2profile; /database/config/orm_test/sqllib/bin/db2 'connect to orm_test'; /database/config/orm_test/sqllib/bin/db2 'CREATE USER TEMPORARY TABLESPACE usr_tbsp MANAGED BY AUTOMATIC STORAGE'"
350+
$CONTAINER_CLI exec -t db2 su - orm_test bash -c ". /database/config/orm_test/sqllib/db2profile; /database/config/orm_test/sqllib/bin/db2 'connect to orm_test'; /database/config/orm_test/sqllib/bin/db2 'CREATE USER TEMPORARY TABLESPACE usr_tbsp MANAGED BY AUTOMATIC STORAGE'"
305351
}
306352

307353
db2_12_1() {
308-
$PRIVILEGED_CLI $CONTAINER_CLI rm -f db2 || true
309-
$PRIVILEGED_CLI $CONTAINER_CLI run --name db2 --privileged -e DB2INSTANCE=orm_test -e DB2INST1_PASSWORD=orm_test -e DBNAME=orm_test -e LICENSE=accept -e AUTOCONFIG=false -e ARCHIVE_LOGS=false -e TO_CREATE_SAMPLEDB=false -e REPODB=false -p 50000:50000 -d ${DB_IMAGE_DB2_11_5:-icr.io/db2_community/db2:12.1.2.0}
354+
CONTAINER_OPTIONS=""
355+
if [[ "$IS_OSX" == "true" ]]; then
356+
# Thanks to Mohamed Asfour https://community.ibm.com/community/user/discussion/db2-luw-115xx-mac-m1-ready#bm017584d2-8d76-42a6-8f76-018dac8e78f2
357+
# This SO post explains what goes wrong on OSX: https://stackoverflow.com/questions/70175677/ibmcom-db2-docker-image-fails-on-m1
358+
# Also, use the $HOME directory as base directory to make volume mounts work on Colima on Mac
359+
db2install=$HOME/db2install.sh
360+
rm -f ${db2install} || true
361+
cat <<'EOF' >${db2install}
362+
#!/bin/bash
363+
find /var/db2_setup -type f -not -path '*/\.*' -exec sed -i "s/su - db2inst1 -c '/su - db2inst1 -c '. .profile \&\& /g" {} +
364+
find /var/db2_setup -type f -not -path '*/\.*' -exec sed -i "s/su - db2inst1 -c \"/su - db2inst1 -c \". .profile \&\& /g" {} +
365+
find /var/db2_setup -type f -not -path '*/\.*' -exec sed -i "s/su - \${DB2INSTANCE?} -c '/su - \${DB2INSTANCE?} -c '. .profile \&\& /g" {} +
366+
find /var/db2_setup -type f -not -path '*/\.*' -exec sed -i "s/su - \${DB2INSTANCE?} -c \"/su - \${DB2INSTANCE?} -c \". .profile \&\& /g" {} +
367+
find /var/db2_setup -type f -not -path '*/\.*' -exec sed -i "s/su - \${instance?} -c '/su - \${instance?} -c '. .profile \&\& /g" {} +
368+
find /var/db2_setup -type f -not -path '*/\.*' -exec sed -i "s/su - \${instance?} -c \"/su - \${instance?} -c \". .profile \&\& /g" {} +
369+
find /var/db2_setup -type f -not -path '*/\.*' -exec sed -i "s/su - \${instance_name?} -c '/su - \${instance_name?} -c '. .profile \&\& /g" {} +
370+
find /var/db2_setup -type f -not -path '*/\.*' -exec sed -i "s/su - \${instance_name?} -c \"/su - \${instance_name?} -c \". .profile \&\& /g" {} +
371+
find /var/db2_setup -type f -not -path '*/\.*' -exec sed -i "s/su - db2inst1 -c \\\\\"/su - db2inst1 -c \\\". .profile \&\& /g" {} +
372+
. /var/db2_setup/lib/setup_db2_instance.sh
373+
EOF
374+
chmod 777 ${db2install}
375+
if [[ "$IS_PODMAN" == "true" ]]; then
376+
CONTAINER_OPTIONS='--platform=linux/amd64 -e IS_OSXFS=true -v '${db2install}':/db2install.sh --entrypoint=["/bin/bash","-c","/db2install.sh"]'
377+
CONTAINER_ARGS=
378+
else
379+
CONTAINER_OPTIONS='--platform=linux/amd64 -e IS_OSXFS=true -v '${db2install}':/db2install.sh --entrypoint=/bin/bash'
380+
CONTAINER_ARGS=" -c /db2install.sh"
381+
fi
382+
if [[ "$IS_PODMAN" == "false" ]]; then
383+
export DOCKER_DEFAULT_PLATFORM=linux/amd64
384+
fi
385+
fi
386+
$CONTAINER_CLI rm -f db2 || true
387+
$CONTAINER_CLI run --name db2 --privileged -e DB2INSTANCE=orm_test -e DB2INST1_PASSWORD=orm_test -e DBNAME=orm_test -e LICENSE=accept -e AUTOCONFIG=false -e ARCHIVE_LOGS=false -e TO_CREATE_SAMPLEDB=false -e REPODB=false -e BLU=false -e ENABLE_ORACLE_COMPATIBILITY=false -e UPDATEAVAIL=NO -e PERSISTENT_HOME=true -e HADR_ENABLED=false -p 50000:50000 $CONTAINER_OPTIONS -d ${DB_IMAGE_DB2_12_1:-icr.io/db2_community/db2:12.1.2.0} $CONTAINER_ARGS
310388
# Give the container some time to start
311389
OUTPUT=
312390
while [[ $OUTPUT != *"INSTANCE"* ]]; do
313391
echo "Waiting for DB2 to start..."
314392
sleep 10
315-
OUTPUT=$($PRIVILEGED_CLI$CONTAINER_CLI logs db2 2>&1)
393+
OUTPUT=$($CONTAINER_CLI logs db2 2>&1)
316394
done
317-
$PRIVILEGED_CLI$CONTAINER_CLI exec -t db2 su - orm_test bash -c ". /database/config/orm_test/sqllib/db2profile; /database/config/orm_test/sqllib/bin/db2 'connect to orm_test'; /database/config/orm_test/sqllib/bin/db2 'CREATE USER TEMPORARY TABLESPACE usr_tbsp MANAGED BY AUTOMATIC STORAGE'"
395+
$CONTAINER_CLI exec -t db2 su - orm_test bash -c ". /database/config/orm_test/sqllib/db2profile; /database/config/orm_test/sqllib/bin/db2 'connect to orm_test'; /database/config/orm_test/sqllib/bin/db2 'CREATE USER TEMPORARY TABLESPACE usr_tbsp MANAGED BY AUTOMATIC STORAGE'"
318396
}
319397

320398
db2_spatial() {
@@ -710,28 +788,30 @@ EOF\""
710788
}
711789

712790
disable_userland_proxy() {
713-
if [[ "$HEALTCHECK_PATH" == "{{.State.Health.Status}}" ]]; then
714-
if [[ ! -f /etc/docker/daemon.json ]]; then
715-
echo "Didn't find /etc/docker/daemon.json but need to disable userland-proxy..."
716-
echo "Stopping docker..."
717-
sudo service docker stop
718-
echo "Creating /etc/docker/daemon.json..."
719-
sudo bash -c "echo '{\"userland-proxy\": false}' > /etc/docker/daemon.json"
720-
echo "Starting docker..."
721-
sudo service docker start
722-
echo "Docker successfully started with userland proxies disabled"
723-
elif ! grep -q userland-proxy /etc/docker/daemon.json; then
724-
echo "Userland proxy is still enabled in /etc/docker/daemon.json, but need to disable it..."
725-
export docker_daemon_json=$(</etc/docker/daemon.json)
726-
echo "Stopping docker..."
727-
sudo service docker stop
728-
echo "Updating /etc/docker/daemon.json..."
729-
sudo bash -c "export docker_daemon_json='$docker_daemon_json'; echo \"\${docker_daemon_json/\}/,}\\\"userland-proxy\\\": false}\" > /etc/docker/daemon.json"
730-
echo "Starting docker..."
731-
sudo service docker start
732-
echo "Service status:"
733-
sudo journalctl -xeu docker.service
734-
echo "Docker successfully started with userland proxies disabled"
791+
if [[ "$IS_DOCKER_RUNTIME" == "true" ]]; then
792+
if [[ "$HEALTCHECK_PATH" == "{{.State.Health.Status}}" ]]; then
793+
if [[ ! -f /etc/docker/daemon.json ]]; then
794+
echo "Didn't find /etc/docker/daemon.json but need to disable userland-proxy..."
795+
echo "Stopping docker..."
796+
sudo service docker stop
797+
echo "Creating /etc/docker/daemon.json..."
798+
sudo bash -c "echo '{\"userland-proxy\": false}' > /etc/docker/daemon.json"
799+
echo "Starting docker..."
800+
sudo service docker start
801+
echo "Docker successfully started with userland proxies disabled"
802+
elif ! grep -q userland-proxy /etc/docker/daemon.json; then
803+
echo "Userland proxy is still enabled in /etc/docker/daemon.json, but need to disable it..."
804+
export docker_daemon_json=$(</etc/docker/daemon.json)
805+
echo "Stopping docker..."
806+
sudo service docker stop
807+
echo "Updating /etc/docker/daemon.json..."
808+
sudo bash -c "export docker_daemon_json='$docker_daemon_json'; echo \"\${docker_daemon_json/\}/,}\\\"userland-proxy\\\": false}\" > /etc/docker/daemon.json"
809+
echo "Starting docker..."
810+
sudo service docker start
811+
echo "Service status:"
812+
sudo journalctl -xeu docker.service
813+
echo "Docker successfully started with userland proxies disabled"
814+
fi
735815
fi
736816
fi
737817
}

‎documentation/src/main/asciidoc/userguide/chapters/query/extensions/Vector.adoc

Lines changed: 116 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -53,15 +53,25 @@ so no further configuration is necessary to make the features available.
5353
[[vector-module-usage]]
5454
==== Usage
5555

56-
Annotate a persistent attribute with `@JdbcTypeCode(SqlTypes.VECTOR)` and specify the vector length with `@Array(length = ...)`.
56+
Annotate a persistent attribute with one of the various vector type codes `@JdbcTypeCode` and specify the vector length with `@Array(length = ...)`.
57+
Possible vector type codes and the compatible Java types are:
58+
59+
* `@JdbcTypeCode(SqlTypes.VECTOR_BINARY)` for `byte[]`
60+
* `@JdbcTypeCode(SqlTypes.VECTOR_INT8)` for `byte[]`
61+
* `@JdbcTypeCode(SqlTypes.VECTOR_FLOAT16)` for `float[]`
62+
* `@JdbcTypeCode(SqlTypes.VECTOR_FLOAT32)` for `float[]`
63+
* `@JdbcTypeCode(SqlTypes.VECTOR_FLOAT64)` for `double[]`
64+
* `@JdbcTypeCode(SqlTypes.VECTOR)` for `float[]`
65+
66+
Hibernate ORM also provides support for sparse vectors through dedicated Java types:
67+
68+
* `@JdbcTypeCode(SqlTypes.SPARSE_VECTOR_INT8)` for `SparseByteVector`
69+
* `@JdbcTypeCode(SqlTypes.SPARSE_VECTOR_FLOAT32)` for `SparseFloatVector`
70+
* `@JdbcTypeCode(SqlTypes.SPARSE_VECTOR_FLOAT64)` for `SparseDoubleVector`
5771

5872
[WARNING]
5973
====
60-
As Oracle AI Vector Search supports different types of elements (to ensure better performance and compatibility with embedding models), you can also use:
61-
62-
- `@JdbcTypeCode(SqlTypes.VECTOR_INT8)` for `byte[]`
63-
- `@JdbcTypeCode(SqlTypes.VECTOR_FLOAT32)` for `float[]`
64-
- `@JdbcTypeCode(SqlTypes.VECTOR_FLOAT64)` for `double[]`.
74+
Vector data type support depends on native support of the underlying database.
6575
====
6676

6777
[[vector-module-usage-example]]
@@ -88,14 +98,21 @@ Expressions of the vector type can be used with various vector functions.
8898
| `euclidean_distance()` | Computes the https://en.wikipedia.org/wiki/Euclidean_distance[euclidean distance] between two vectors. Maps to the `<``-``>` operator for `pgvector` and maps to the
8999
`vector_distance(v1, v2, EUCLIDEAN)` function for `Oracle AI Vector Search`.
90100

101+
| `euclidean_squared_distance()` | Computes the https://en.wikipedia.org/wiki/Euclidean_distance#Squared_Euclidean_distance[squared euclidean distance] between two vectors.
102+
91103
| `l2_distance()` | Alias for `euclidean_distance()`
92104

105+
| `l2_squared_distance()` | Alias for `euclidean_squared_distance()`
106+
93107
| `taxicab_distance()` | Computes the https://en.wikipedia.org/wiki/Taxicab_geometry[taxicab distance] between two vectors. Maps to `vector_distance(v1, v2, MANHATTAN)` function for `Oracle AI Vector Search`.
94108

95109
| `l1_distance()` | Alias for `taxicab_distance()`
96110

97111
| `hamming_distance()` | Computes the https://en.wikipedia.org/wiki/Hamming_distance[hamming distance] between two vectors. Maps to `vector_distance(v1, v2, HAMMING)` function for `Oracle AI Vector Search`.
98112

113+
| `jaccard_distance()` | Computes the https://en.wikipedia.org/wiki/Jaccard_index[jaccard distance] between two vectors. Maps to the `<``%``>` operator for `pgvector` and maps to the
114+
`vector_distance(v1, v2, JACCARD)` function for `Oracle AI Vector Search`.
115+
99116
| `inner_product()` | Computes the https://en.wikipedia.org/wiki/Inner_product_space[inner product] between two vectors
100117

101118
| `negative_inner_product()` | Computes the negative inner product. Maps to the `<``#``>` operator for `pgvector` and maps to the
@@ -104,6 +121,14 @@ Expressions of the vector type can be used with various vector functions.
104121
| `vector_dims()` | Determines the dimensions of a vector
105122

106123
| `vector_norm()` | Computes the https://en.wikipedia.org/wiki/Euclidean_space#Euclidean_norm[Euclidean norm] of a vector
124+
125+
| `l2_norm()` | Alias for `vector_norm()`
126+
127+
| `l2_normalize()` | Normalizes each component of a vector by dividing it with the https://en.wikipedia.org/wiki/Euclidean_space#Euclidean_norm[Euclidean norm] of the vector.
128+
129+
| `binary_quantize()` | Reduces a vector of size N to a binary vector with N bits, using 0 for values <= 0 and 1 for values > 0.
130+
131+
| `subvector()` | Creates a subvector from a given vector, a 1-based start index and a count.
107132
|===
108133

109134
In addition to these special vector functions, it is also possible to use vectors with the following builtin `pgvector` operators:
@@ -143,6 +168,21 @@ include::{example-dir-vector}/FloatVectorTest.java[tags=euclidean-distance-examp
143168
----
144169
====
145170

171+
[[vector-module-functions-euclidean-squared-distance]]
172+
===== `euclidean_squared_distance()` and `l2_squared_distance()`
173+
174+
Computes the https://en.wikipedia.org/wiki/Euclidean_distance#Squared_Euclidean_distance[squared euclidean distance] between two vectors,
175+
which is `sum( (v1_i - v2_i)^2 )`, just like the regular `euclidean_distance`, but without the `sqrt`.
176+
The `l2_squared_distance()` function is an alias.
177+
178+
[[vector-module-functions-euclidean-squared-distance-example]]
179+
====
180+
[source, java, indent=0]
181+
----
182+
include::{example-dir-vector}/FloatVectorTest.java[tags=euclidean-squared-distance-example]
183+
----
184+
====
185+
146186
[[vector-module-functions-taxicab-distance]]
147187
===== `taxicab_distance()` and `l1_distance()`
148188

@@ -158,6 +198,36 @@ include::{example-dir-vector}/FloatVectorTest.java[tags=taxicab-distance-example
158198
----
159199
====
160200

201+
[[vector-module-functions-hamming-distance]]
202+
===== `hamming_distance()`
203+
204+
Computes the https://en.wikipedia.org/wiki/Hamming_distance[hamming distance] between two binary vectors,
205+
which is `bit_count(v1 ^ v2)` i.e. the amount of bits where two vectors differ.
206+
Maps to the `<``~``>` operator for `pgvector`.
207+
208+
[[vector-module-functions-taxicab-distance-example]]
209+
====
210+
[source, java, indent=0]
211+
----
212+
include::{example-dir-vector}/BinaryVectorTest.java[tags=hamming-distance-example]
213+
----
214+
====
215+
216+
[[vector-module-functions-jaccard-distance]]
217+
===== `jaccard_distance()`
218+
219+
Computes the https://en.wikipedia.org/wiki/Jaccard_index[jaccard distance] between two binary vectors,
220+
which is `1 - bit_count(v1 & v2) / bit_count(v1 | v2)`.
221+
Maps to the `<``%``>` operator for `pgvector`.
222+
223+
[[vector-module-functions-taxicab-distance-example]]
224+
====
225+
[source, java, indent=0]
226+
----
227+
include::{example-dir-vector}/BinaryVectorTest.java[tags=jaccard-distance-example]
228+
----
229+
====
230+
161231
[[vector-module-functions-inner-product]]
162232
===== `inner_product()` and `negative_inner_product()`
163233

@@ -187,10 +257,11 @@ include::{example-dir-vector}/FloatVectorTest.java[tags=vector-dims-example]
187257
====
188258

189259
[[vector-module-functions-vector-norm]]
190-
===== `vector_norm()`
260+
===== `vector_norm()` and `l2_norm()`
191261

192262
Computes the https://en.wikipedia.org/wiki/Euclidean_space#Euclidean_norm[Euclidean norm] of a vector,
193263
which is `sqrt( sum( v_i^2 ) )`.
264+
The `l2_norm()` function is an alias.
194265

195266
[[vector-module-functions-vector-norm-example]]
196267
====
@@ -200,6 +271,44 @@ include::{example-dir-vector}/FloatVectorTest.java[tags=vector-norm-example]
200271
----
201272
====
202273

274+
[[vector-module-functions-l2-normalize]]
275+
===== `l2_normalize()`
276+
277+
Normalizes each component of a vector by dividing it with the https://en.wikipedia.org/wiki/Euclidean_space#Euclidean_norm[Euclidean norm] of the vector.
278+
279+
[[vector-module-functions-l2-normalize-example]]
280+
====
281+
[source, java, indent=0]
282+
----
283+
include::{example-dir-vector}/FloatVectorTest.java[tags=l2-normalize-example]
284+
----
285+
====
286+
287+
[[vector-module-functions-binary-quantize]]
288+
===== `binary_quantize()`
289+
290+
Reduces a vector of size N to a binary vector with N bits, using 0 for values <= 0 and 1 for values > 0.
291+
292+
[[vector-module-functions-binary-quantize-example]]
293+
====
294+
[source, java, indent=0]
295+
----
296+
include::{example-dir-vector}/FloatVectorTest.java[tags=binary-quantize-example]
297+
----
298+
====
299+
300+
[[vector-module-functions-subvector]]
301+
===== `binary_quantize()`
302+
303+
Creates a subvector from a given vector, a 1-based start index and a count.
304+
305+
[[vector-module-functions-subvector-example]]
306+
====
307+
[source, java, indent=0]
308+
----
309+
include::{example-dir-vector}/FloatVectorTest.java[tags=subvector-example]
310+
----
311+
====
203312

204313

205314

‎hibernate-community-dialects/src/main/java/org/hibernate/community/dialect/DB2LegacyDialect.java

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -12,6 +12,7 @@
1212
import org.hibernate.boot.model.TypeContributions;
1313
import org.hibernate.community.dialect.sequence.LegacyDB2SequenceSupport;
1414
import org.hibernate.community.dialect.temptable.DB2LegacyLocalTemporaryTableStrategy;
15+
import org.hibernate.dialect.DB2Dialect;
1516
import org.hibernate.dialect.DB2GetObjectExtractor;
1617
import org.hibernate.dialect.DatabaseVersion;
1718
import org.hibernate.dialect.Dialect;
@@ -183,7 +184,7 @@ public DB2LegacyDialect() {
183184
}
184185

185186
public DB2LegacyDialect(DialectResolutionInfo info) {
186-
super( info );
187+
this( DB2Dialect.determinFullDatabaseVersion( info ) );
187188
lockingSupport = buildLockingSupport();
188189
}
189190

0 commit comments

Comments
(0)

AltStyle によって変換されたページ (->オリジナル) /