I start up a fresh XTDB Docker instance locally:
Status: Image is up to date for ghcr.io/xtdb/xtdb:latest
Starting XTDB 2.x @ 2.0.0-beta2 @ 2dc57ba ...
01:03:47 | INFO xtdb.api.metrics.PrometheusMetrics | Prometheus server started on port 8080
01:03:47 | INFO xtdb.metrics | tagging all metrics with node-id: xtdb-node-685c4c
01:03:47 | INFO xtdb.pgwire | Server started on port: 5432
01:03:49 | INFO xtdb.server | HTTP server started on port: 3000
01:03:49 | INFO xtdb.cli | Node started
I run the following in a REPL, using next.jdbc and the PostgreSQL JDBC driver:
(~/oss/next-jdbc)-(!2005)-> clj -A:1.12:test
Clojure 1.12.0
user=> (require '[next.jdbc :as jdbc])
nil
user=> (require '[next.jdbc.sql :as sql])
nil
user=> (def db (jdbc/get-connection {:dbtype "postgres" :dbname "public"}))
SLF4J: No SLF4J providers were found.
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See https://www.slf4j.org/codes.html#noProviders for further details.
SLF4J: Class path contains SLF4J bindings targeting slf4j-api versions 1.7.x or earlier.
SLF4J: Ignoring binding found at [jar:file:/home/sean/.m2/repository/org/apache/logging/log4j/log4j-slf4j-impl/2.24.0/log4j-slf4j-impl-2.24.0.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See https://www.slf4j.org/codes.html#ignoredBindings for an explanation.
#'user/db
user=> (sql/query db ["select * from address"])
[]
user=> (jdbc/execute-one! db ["insert into address (_id,house,street,city,\"zip/code\",country) values (3, '5124', 'Ray Ave', 'Castro Valley', '94546', 'US')"])
#:next.jdbc{:update-count 0}
user=> (sql/query db ["select * from address"])
Execution error (PSQLException) at org.postgresql.core.v3.QueryExecutorImpl/receiveErrorResponse (QueryExecutorImpl.java:2733).
ERROR: unexpected server error compiling query
Here’s the console output from the Docker instance running:
01:04:21 | DEBUG xtdb.pgwire | Interpreting SQL: select * from address
01:04:21 | WARN xtdb.sql.plan | Table not found: address
01:04:33 | DEBUG xtdb.pgwire | Interpreting SQL: insert into address (_id,house,street,city,"zip/code",country) values (3, '5124', 'Ray Ave', 'Castro Valley', '94546', 'US')
01:04:39 | DEBUG xtdb.pgwire | Interpreting SQL: select * from address
01:04:39 | ERROR xtdb.pgwire | #error {
:cause Cannot invoke "org.apache.arrow.vector.types.pojo.Field.getType()" because "field" is null
:via
[{:type java.lang.NullPointerException
:message Cannot invoke "org.apache.arrow.vector.types.pojo.Field.getType()" because "field" is null
:at [xtdb.types$field__GT_col_type invokeStatic types.clj 521]}]
:trace
[[xtdb.types$field__GT_col_type invokeStatic types.clj 521]
[xtdb.types$field__GT_col_type invoke types.clj 520]
[xtdb.operator.project$__GT_rename_projection_spec invokeStatic project.clj 109]
[xtdb.operator.project$__GT_rename_projection_spec invoke project.clj 108]
[xtdb.operator.project$eval24548$fn__24551$fn__24555$iter__24575__24579$fn__24580$fn__24581 invoke project.clj 162]
[xtdb.operator.project$eval24548$fn__24551$fn__24555$iter__24575__24579$fn__24580 invoke project.clj 151]
[clojure.lang.LazySeq force LazySeq.java 50]
[clojure.lang.LazySeq lockAndForce LazySeq.java 60]
[clojure.lang.LazySeq sval LazySeq.java 69]
[clojure.lang.LazySeq unwrap LazySeq.java 77]
[clojure.lang.LazySeq realize LazySeq.java 93]
[clojure.lang.LazySeq seq LazySeq.java 106]
[clojure.lang.RT seq RT.java 555]
[clojure.core$seq__5484 invokeStatic core.clj 139]
[clojure.core.protocols$seq_reduce invokeStatic protocols.clj 24]
[clojure.core.protocols$fn__8258 invokeStatic protocols.clj 74]
[clojure.core.protocols$fn__8258 invoke protocols.clj 74]
[clojure.core.protocols$fn__8199$G__8194__8212 invoke protocols.clj 13]
[clojure.core$transduce invokeStatic core.clj 7026]
[clojure.core$into invokeStatic core.clj 7042]
[clojure.core$into invoke core.clj 7029]
[xtdb.operator.project$eval24548$fn__24551$fn__24555 invoke project.clj 170]
[xtdb.logical_plan$unary_expr invokeStatic logical_plan.clj 116]
[xtdb.logical_plan$unary_expr invoke logical_plan.clj 114]
[xtdb.operator.project$eval24548$fn__24551 invoke project.clj 146]
[clojure.lang.MultiFn invoke MultiFn.java 234]
[xtdb.query$emit_expr$reify__27217 apply query.clj 128]
[java.util.concurrent.ConcurrentHashMap computeIfAbsent ConcurrentHashMap.java 1708]
[xtdb.query$emit_expr invokeStatic query.clj 116]
[xtdb.query$emit_expr invoke query.clj 114]
[xtdb.query$prepare_ra$reify__27256 columnFields query.clj 187]
[xtdb.pgwire$parse$fn__28509 invoke pgwire.clj 1437]
[xtdb.pgwire$parse invokeStatic pgwire.clj 1412]
[xtdb.pgwire$parse invoke pgwire.clj 1383]
[xtdb.pgwire$cmd_parse invokeStatic pgwire.clj 1464]
[xtdb.pgwire$cmd_parse invoke pgwire.clj 1460]
[xtdb.pgwire$handle_msg invokeStatic pgwire.clj 1622]
[xtdb.pgwire$handle_msg invoke pgwire.clj 1600]
[xtdb.pgwire$conn_loop invokeStatic pgwire.clj 1682]
[xtdb.pgwire$conn_loop invoke pgwire.clj 1638]
[xtdb.pgwire$connect invokeStatic pgwire.clj 1723]
[xtdb.pgwire$connect invoke pgwire.clj 1691]
[xtdb.pgwire$accept_loop$fn__28633$fn__28634$fn__28635 invoke pgwire.clj 1776]
[clojure.lang.AFn run AFn.java 22]
[java.util.concurrent.Executors$RunnableAdapter call Executors.java 572]
[java.util.concurrent.FutureTask run FutureTask.java 317]
[java.util.concurrent.ThreadPoolExecutor runWorker ThreadPoolExecutor.java 1144]
[java.util.concurrent.ThreadPoolExecutor$Worker run ThreadPoolExecutor.java 642]
[java.lang.Thread run Thread.java 1583]]}
It seems to be due to using "zip/code" as the column name – I was curious where we are now on / in column names since they used to be accepted and turned into $.
If I use "zip$code" it works (well, with a fresh instance since I can no longer query the address table in this instance 
).