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https://issues.apache.org/jira/browse/CALCITE-3844?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17052685#comment-17052685
]
Francis Chuang commented on CALCITE-3844:
-----------------------------------------
Please see my comments
{code}
package main
import (
"context"
"database/sql"
_ "github.com/apache/calcite-avatica-go/v4"
"github.com/sirupsen/logrus"
)
const (
JDBC_DRIVER = "avatica"
PHOENIX_ADDR = "http://localhost:8765";
)
var db *sql.DB
func init() { // This runs when the program is executed
db, err := sql.Open(JDBC_DRIVER, PHOENIX_ADDR)
if err != nil {
logrus.Error("error connecting: ", err.Error())
}
defer db.Close() // If you close the db here, it's no longer available
return res // The res variable does not exist
}
func QueryContext(query string) (rows *sql.Rows) {
rows, err := db.QueryContext(context.TODO(), query)
if err != nil {
logrus.Error("query: ", err)
}
defer db.Close() // I think this should be rows.Close()
return rows
}
func main() {
logrus.Info(QueryContext("SELECT * FROM TEST"))
}
{code}
> when i use the example calcite-avatica-go provided, it always reports “panic:
> runtime error: invalid memory address or nil pointer dereference[signal
> SIGSEGV: segmentation violation code=0x1 addr=0x20 pc=0x4e6e01]”
> ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: CALCITE-3844
> URL: https://issues.apache.org/jira/browse/CALCITE-3844
> Project: Calcite
> Issue Type: Bug
> Components: avatica-go
> Reporter: yaruqi
> Assignee: Francis Chuang
> Priority: Blocker
>
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